As Cassie struggles to make sense of Lexie's life and death, we delve into her own difficult past. Meanwhile, Rob's past finally yields some results in the Katy investigation.

Starring:

Tom Vaughan-Lawlor , Killian Scott , Moe Dunford , Sarah Greene , Conleth Hill , Ian Kenny , Leah McNamara , Eugene O'Hare , Amy Macken , Jonny Holden , Kathy Monahan , Antonio Aakeel , Sam Keeley , Carolyn Bracken , James Browne , Vanessa Emme , Charlie Kelly , Aidan O'Hare , Caoimhe O'Malley , Mark Byrne , Ned Dennehy , Shereen Martin , Ericka Roe , Florence Ordesh

Genre:

Crime, Drama