A former probationary officer who is a patient at a mental asylum escapes and prowls the city, looking for victims whose blood may cure the blood disease he has that has turned him into a werewolf-type monster.

This spin-off from The Odd Man (1962) starred William Mervyn as the acerbic Inspector Rose, who, alongside the soft-hearted pensive Det. Sgt. Swift (Keith Barron), are joined by Anthony (John Carson) and Alice Brand (June Toblin), a barrister and his journalist wife, though not for long. By the second season, the Brands and Swift departed, leaving the calm, cold Rose in prime position, supported ...

A former probationary officer who is a patient at a mental asylum escapes and prowls the city, looking for victims whose blood may cure the blood disease he has that has turned him into a werewolf-type monster.