Undercover vice squad detective Tom Howarth goes missing while investigating the murder of a prostitute. His wife Lois and his best friend Matt, also detectives, set out to search for him, but end up falling in love with one another.

• Steven Mackintosh
• Daniela Nardini
• Lennie James
• Leonie Elliott
• David Troughton
• Andy Kennedy
• Buffy Davis
• Trevor Laird