at told Vincent that she wouldn't be second choice after Alex and so on St.Valentine's day Vincent is desperate to win Cat over. JT offers advice on how to woo Cat, (taken from the internet and which he is using for his own girlfriend). Vincent sends Cat cut flowers which she gives to Tess,then chocolates followed by street dancers who surround Cat as he watches her online, none of which impresses Cat. Meanwhile Cat contacts Alex and warns her that she is now on Muirfields radar and they will use her to get to Vincent so she must disappear. Evan is suspicious of girlfriend, Claire, as she was the only one to have opportunity to contaminate his DNA sample in the lab. Heather starts a new job and meets Joe's brother, Darius. The case of a journalist's apparent suicide lands on Tess and Cat's desk and Cat finds a mobile phone at the scene which links to Alex. Vincent rushes to Alex when she calls him for help only to be drugged by her. Cat visits evidence locker and is caught by Tess destroying evidence.

Résumé de IMDb.com