Scott & Bailey (2011)

S6E12 Tying the Knot

Dr. Jonathan Paige and DI Gillian Cramer enjoy their final night of freedom before tying the knot. However, their celebration is interrupted when a boy is discovered bound in the woods nearby. As Paige investigates, he recognizes a familiar face from his past, triggering memories of an unresolved case linked to a child strangler.