Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
On Chincoteague Island, a young mother is murdered steps from a vacant summer home. Det. Danny Plott learns she was lured to her death by a mysterious phone call. S1/Ep5
The body of a promising young radio host turns up near a road in south Houston. Det. Harris takes the case, and uncovers a tragic tale of love and deceit. S2/Ep5
A home health care aide's body floats in a rural Connecticut creek. Detective Garritt Kelly joins the investigation to bring justice to a community gripped by fear. S2/Ep6
Detective Ben Elkins gets called in to search for a missing farmhand. But when the man's body turns up miles down the Coweeman river, the case takes a sinister turn. S2/Ep12
Kidnappers seize the heir to a multi-million-dollar airplane empire for ransom, but the FBI uncovers a ruse - and a far darker truth emerges. S5/Ep5
A gruesome attack on an elderly couple leaves Phoenix police baffled. But a string of similar unsolved cases could lead detectives to the vicious perpetrator. S1/Ep10