As DI Richard Poole desperately searches for a decent cup of tea, a bride is murdered on her wedding day. It is a tragedy DS Camille Bordey cannot help but notice, whilst Richard is more interested in housekeeping signs... But who would kill a bride on her wedding day? Could it really be one of her family?
Dwayne thinks he has seen a ghost after the team goes to a local school to deal with the murder of Angelique Morel. The previous night Angelique had predicted her own murder by a scarred man. Angelique was a local voodoo priestess, but Richard finds it hard to understand his team's belief that her prediction must have become a reality. Richard believes that it has nothing to do with voodoo and that cyanide poisoning is responsible.
Holiday-maker Megan Talbot confesses to shooting dead her husband, but puzzlingly there isn't a body - and without a victim, Richard has little to go on, insisting nothing is definite without hard evidence. But then a local boat crew fish a corpse out of the sea, with two gunshot wounds to the head - just as Megan said.
Escorting a convicted fraudster on the ferry back to Saint Marie goes disastrously wrong when the man is stabbed to death while handcuffed to DI Poole much to his embarrassment, the wrath of the commissioner and the amusement of his team and with a myriad of suspects an impossible case to solve despite unwanted help from an amateur sleuth.
When DI Poole is bedridden with a tropical fever and Camille is on a course in Paris, Dwayne and Fidel have to solve the murder of a local diver. The commissioner puts in charge Det Sgt Angela Young, who is holidaying on the island, and whose eccentric behaviour is more annoying than Poole's. Dwayne and Fidel go behind her back supplying case details to DI Poole who is being looked after by Camile's mother and her chicken soup - but can an ill DI Poole solve the case?
A woman is found murdered in her bed with thirty coins in her mouth, and Dwayne's police shield under the bed initially makes him a suspect. On investigation, the woman was found to be living under a false name and under protection, as an informant, of London's Serious Organised Crime Agency, who have a man on the island. Poole believes the killer is still on the island looking for incriminating documents the woman had. Events and people conspire to prevent Poole returning to his old job in London.
A university reunion party that DI Richard Poole is attending is brought to an abrupt halt when one of the group is murdered with an ice pick. With the case proving particularly sensitive, a new British detective, DI Humphrey Goodman, arrives on the island to help the team get to the bottom of the mysterious case. As the station's newest recruit with his own set of methods, will Humphrey be able to adjust to his new team and surroundings?
Humphrey is called to a hotel when a bride is found dead in her room the morning after her hen party. The team quickly establish that the bride knew her murderer, as she willingly let them into her room before she was killed. Camille ponders her future in Saint Marie when she is offered a permanent job in Paris.
Fashion model Zoe Mackay is strangled moments after leaving the catwalk, leaving DI Goodman and his team stumped. All of her colleagues, dress designer, three other models and the photographer have watertight alibis and the backstage area was securely guarded at all times. The only clue was a stocking clasped in the victims hand. A series of catwalk photographs of the event from start to finish even provide an image of the actual murder.
Dwayne's old mentor, Cedrik, is found dead and as he is being cremated a text message saying "I was murdered" from his phone that Dwayne had placed in the coffin, is received by Dwayne. Evidence from a pillow indicates murder. The suspects are Cedrik's three friends and his girlfriend. Goodman is also confused as to why the victim gave Dwayne a lucky necklace and had ordered a cheap mail order watch two days before he died.
Goodman's aunt Mary comes to visit him, but things take an unexpected turn when she becomes the only witness to the murder of John Green, a tourist, thrown from his balcony in the next hotel room. A check on Green's background reveals that he did not exist until five years ago and the first thing he did upon arriving was meet career criminal Neil Jenkins; resident on Saint Marie for the last nine years.
After chef Robert Holt is discovered fatally stabbed, with his body turning up in a freezer the morning after the opening of his new restaurant, DI Goodman and the team are left clueless as to who is responsible. Most of the victim's loved ones were at the event, but Humphrey realises that Holt's brother, Gary, was absent and wonders if he could have committed the crime.
When the salvage of the 400 year old silver coin hoard from a sunken ship is completed, the leader of a Marine Salvage team, Tosh Walker, is found dead with a stab wound to the chest. The evidence leads to prime suspect, rival treasure hunter, Newton Farrell, who argued with Walker earlier; but he is alibied by Catherine at the time that Walker's wife received a phone call from Walker claiming Farrell had stabbed him.
Sian Evans is found shot dead in her backpackers hostel showers. With a gun in her hand and her body slumped against the door, it all points to suicide. All the hostel residents are on a boat tour except for her boyfriend, the manager, a woman missing from her home in Wales and Leo, a recent arrival. Humphrey and the team discover they all had a motive to kill Evans . The only clues are her toiletries laid out and her missing towel. JP marries Rosey Fabrice and Humphrey meets an old girlfriend.
Florence finds herself emotionally involved in a case when a former schoolmate, Esther Monroe, is found dead at the foot of a cliff during a literary festival. The prime suspects for the murder include Sylvie Baptiste, writer of the infamous local novel "The Flame Tree"; her assistant, Patricia Lawrence; and festival organisers Anna and Oliver Wolf. Whilst searching for possible witnesses to the murder, Dwayne and JP come across a frightened woman living in a wooden shack on the outskirts of Sylvie Baptiste's estate. When Florence discovers that the woman may infact be Sylvie's long-lost sister Lizzie, a possible motive for Esther's murder comes to light.
The celebratory launch of a new luxury resort is cut short when a woman is found electrocuted in her hotel bathtub—with the door locked from the inside. It looks like a simple case of suicide, but with Jack no longer around to confirm Commissioner Selwyn’s suspicions, DI Neville Parker is temporarily flown over from Manchester to close the case.
Christmas in Saint Marie takes a spooky turn this year when an old case of Selwyn’s comes back to haunt him following the murder of a true crime podcaster on the hunt for a missing child. Marlon is forced to spend the night in a haunted house and Darlene takes a hard look at her life choices. And after a chance encounter in an airport car park, could love finally be in the air for Neville Parker?