When Cathy and Martin decide to have a baby by donor insemination, Cathy's mother, Joan, blames her son-in-law for the "unnatural" act. Intrigue follows - Joan is murdered; the doctor at the clinic has been using his own sperm to impregnate women. Taggart has to resolve this and catch the killer.
Used availability for Peter Cave's Forbidden Fruit
October 1994 : UK Paperback
March 1998 : UK Audio Cassette