Rob crosses line when he does his utmost to get Marnie removed from their care, but will Karen find out what he is up to? Emma reaches out to a vulnerable woman who has just made a devastating confession. But is she in too deep?

Ruhma and Heston make secret plans with help from their friends. Emma is curious to know how Zara would respond if Daniel ever proposed. Rob's guilty secret weighs him down. Valerie turns detective when a patient suspects her partner is cheating, but his secret is far more shocking than an affair.