Tracy was at the Community Centre talent show with boyfriend Luke, all set to watch her daughter Amy perform her violin recital. But when Amy went missing just before her performance Luke and Tracy left to search the street for Amy.
Did Tracy sneak away for a few minutes in order to have it out with her father, resulting in them coming to blows?
Adam accuses Tracy of a false alibi, while Tracy wonders why he's desperately trying to direct the suspicion onto anyone but him...
Was Tracy Barlow capable of attacking Ken? DS MacKinnon appeals for your help in solving the mystery.
The police try to pick holes in Tracy's story after she tells them where she was on the night of Ken's attack.