A murder in a small Scottish town sends the community into shock, and local detective Annie Redford is thrust into her first murder case.

The police hold an appeal for the safe return of Jonjo. Anxiety is exacerbated by the fact that Jonjo suffers from bipolar disorder and has neglected his medication.

Despite being threatened with arrest by Quigley, Albrighton continues to obsess over evidence. About to leave, he hears something that makes things click into place. Unable to face Quigley, Albrighton risks his life to prove he's right.