Rebecca Callard

Martin examines Helen Pratt, but she collapses and dies. Her husband, Phil, is angry with the doctor and blames him for his wife's death. A feud develops between Phil and Helen's long-time friend Joan after Phil becomes convinced that Joan knew something secret about him. Joan encourages Martin to explain the circumstances of Helen's death to Phil, having previously been extremely cold and insensitive following her death. Pauline begins training to become a member of the lifeboat crew, flirting with her instructor in the process, causing Al to become jealous. Features special guest Roger Lloyd-Pack.

A social worker takes on a disturbed down and out but may have cause to regret it as her predecessor was murdered in mysterious circumstances.