Ciaran is still trying to work out what Heather knows about Katy tonight, and is further shaken when she asks to watch the TV show about 'the trapped girl'. Dammit Heather, remember already! This letter of Katy's also surfaces again tonight, but unfortunately, doesn't make it into the right hands. Elsewhere, Niamh worries that Marcus is intending to blackmail her, but from the look of that picture, it's her he is after...