At least one elderly person loses their life every week in the name of witchcraft along Kenya’s stunning Kilifi coast. Violent attacks on supposed witches occur across swathes of Africa and beyond, but the estimated 70 deaths reported here every year are about much more than fear of the supernatural. Meeting victims, relatives and even perpetrators, #BBCAfricaEye investigates the real motives fuelling these brutal incidents and the impunity that often enables them, revealing that many elderly victims are targeted not by strangers, but the very people who should be protecting them - their own families.