With Glyn's unexpected return, Margaret and Clive's romantic night at the Manse suddenly takes a dark and surreal turn. Will they stay and face the truth or will they run?

With Glyn still missing and Ruth Ellis on the suitcase, the cracks are starting to show. Will the truth about Margaret and Clive come to light? And what about Herbie and Sylvia's affair? And where exactly does the creepy chemist Haydn Owen fit into all of this?