Venom is a 1981 British natural horror-thriller film directed by Piers Haggard, written by Robert Carrington, and starring Klaus Kinski, Oliver Reed, Nicol Williamson, and Sarah Miles. It is based on Alan Scholefield's novel of the same name. Plot International criminal Jacques Müller and his girlfriend Louise Andrews plan to kidnap Philip Hopkins, the grandson of Howard Anderson, a retired hunter and the wealthy owner of a hotel chain. Louise goes undercover as a maid working for Philip's mother Ruth and seduces her chauffeur Dave Averconnelly, convincing him to help in the kidnapping. On the day of the kidnapping, Müller tricks Howard and Ruth into leaving home while Louise and Dave kidnap the boy. Philip leaves briefly to retrieve a pet snake, which is accidentally swapped with a black mamba meant for toxicologist Dr. Marion Stowe. Howard returns home early, and the black mamba is released and bites Louise in the face repeatedly before fleeing into the ventilation system. Müller and Taylor Species take Howard and Philip hostage, while Louise dies from the black mamba's venom. Dr. Stowe contacts the police, having discovered the mix-up, and a police officer is dispatched to the Hopkins residence. The officer is shot and killed by Dave with one of Howard's rifles, but the officer manages to call for backup before he dies. More police officers arrive, led by commander William Bulloch, and after learning about the hostages, Bulloch has the street sealed off and tries to negotiate with Müller, but refuses to give in to Müller's demands for transportation and one million in different currencies. Dr. Stowe arrives with a case of anti-venom and informs Bulloch of the black mamba. Bulloch and Dr. Stove warn both the kidnappers and hostages of the snake, and Müller lies that Louise is still alive, and orders Dr. Stowe to come to the front door with the anti-venom to treat her. Dr. Stowe complies and is taken hostage. Bulloch discovers a secret entrance through the cellar, and he and two other officers try to enter. Dr. Stowe suggests turning off the central heating source, as this would send the black mamba into a coma. Dave and Howard climb into the cellar at the same time Bulloch and the officers enter. Bulloch shoots and injures Dave, and the black mamba attacks, forcing Bulloch and the officers to flee while Howard flees from the cellar and back onto the