Jack-in-the-Box - A D.I. Lomond Thriller

A terrifying killer is haunting Glasgow’s affluent suburbs, and the tabloids have a name for the murderer: Jack-in-the-Box. Inspector Lomond has an impossible case to crack. There is no evidence of forced entry, and video footage shows no sign of any intruders. How is he getting in? How is he getting out? And who will be next?