New Coronation Street
pictures show Rob Donovan finally confess to killing Tina McIntyre next week when his sister Carla Barlow catches him out.
As Tracy Barlow excitedly prepares for her wedding and enjoys her hen party, Rob (Marc Baylis) spends his stag night with Carla (Alison King) where she quizzes him about the events surrounding Tina's murder.
After hearing Rob's version of events from the night Tina was attacked, Carla catches him out when she speaks to Tracy and realises that their stories don't match.
Returning home, Carla tells Rob she now has the proof that Peter didn't kill Tina, leaving him horrified.
Carla corners Tracy in the Rovers
Rob's problems escalate when Carla reveals to Rob that she knows he is lying, explaining that she believes he is covering up for the real murderer - Tracy.
As Carla becomes intent on calling the police, Rob stops her and explains that Tracy was actually driving a van load of stolen gear when Tina was murdered and they lied to the police knowing they'd both be sent down if they were caught.
Rob tells Carla how much he loves Tracy, but when Carla points out that Tracy's false alibi means he is also without an alibi, Rob loses his temper and storms out.
Carla is taken aback by his outburst and becomes more suspicious than ever, despite Rob claiming later that it was simply down to wedding nerves.
Carla is taken back by Rob's outburst
Unconvinced, Carla points out how Rob seemed to know from the off that Tracy was innocent and asks him if he killed Tina.
Although Rob tries to deny it, Carla continues to push him and finally confesses that he did murder her...
Rob hopes Carla will keep his secret
airs these scenes next week on ITV.