Set in the aftermath of a teenage girl's disappearance, Mayday follows a small Sussex village as the resisents start to turn on each other...
Creators Ben Court and Caroline Ip say: "Mayday began with this thought: what would it feel like to suspect someone you love of a terrible crime?"
When 14-year-old Hattie goes missing, "a wife suspects her husband but has her reputation to protect. A son suspects his father but is afraid of being alone. A brother suspects his brother but has too much to lose. A mother of three tries not to suspect her husband because it would destroy her children."
Watch the trailer and take a look at these preview pictures: