Monday, January 13, 2020, 4:30-6:00 p.m.

Follow a stone-cold case of murder that tests the wits of crime-solving duo DCI Cassie Stuart (Nicola Walker, LAST TANGO IN HALIFAX) and DS Sunny Khan (Sanjeev Bhaskar, INDIAN SUMMERS).

A waterlogged suitcase holds the remains of David Walker, 25 years after he disappeared. Walker’s wife, Tessa, turns out to be a police officer. Cassie and Sunny interview two other suspects, Sara and Colin.