Freddie puts Lily's life in peril and Molly must race to save her as Freddie unravels. Meanwhile, Constable Freya Harris has been working on a tip-off that Gareth and Councillor Jacinta Clunes may be involved in some dodgy dealings.

The investigation has a break-through when a woman called Marianne Gowdie is discovered to have the same blood disorder as Dorothy Moxley. A strange night with Gareth causes Alex to recall memories he's suppressed for years.