The rough and roguish William Wellington is an Inspector for Scotland Yard and believes that being a detective is a job for a man and it's down to tough coppers like him to keep the streets of London safe for ladies like Eliza. He's about to be proved very, very wrong! Beneath his gruff exterior, though, William is a good-hearted fellow who is fond of Miss Scarlet and, despite himself, reluctantly teams up with her.