退休的侦探督察亚历克斯·里德利（Alex Ridley）在他的前门生卡罗尔·法曼（Carol Farman）需要帮助侦破一宗复杂的谋杀案时，被诱使重新担任顾问侦探。
Adrian Dunbar
DI Alex Ridley
Bronagh Waugh
DI Carol Farman
Terence Maynard
DCI Paul Goodwin
George Bukhari
DC Darren Lakhan
Julie Graham
Annie Marling
Georgie Glen
Dr. Wendy Newstone
Bhavna Limbachia
Geri Farman
Tareq Al-Jeddal
Jack Farman
