The plot is a real sidewinder starting off in Mexico with Charles Raymaud who slips other things besides snakes through customs. . . this time at London Airport. In London Raymaud is hired by Lucienne to guard the life of her noxious stepson Richard Pierce until he receives his inheritance. But Richard has evidence that Lucienne or someone is attempting to kill him. Could it be Uncle Black who has come up with a secret potion that drives men kill-crazy? The Venom Business is fast-acting but it'll leave you cold.