Jack and Charlie's hunt for a serial rapist becomes complicated when the latest woman to be attacked turns out to be Diane Ackerman - the wife of the station's chief superintendent Howard. A routine background check reveals that the police had recently been called to their address and Diane has a bruise on her throat that predates the rape.

• Paul Marquess
• Jackie Malton

• Damien Molony
• Clare-Hope Ashitey
• Fay Ripley