内容简介：
John Collins gets off a ship in San Francisco and starts classes at California University. He is a suspect in two murders before he even graduates. When he goes to work in an industrial plant, he is shocked to find his old friend, policewoman Jane Goodson, working there as a secretary under an assumed name. She claims she has retired from police work and is using an assumed name for her own protection, but John is skeptical. An electrician is electrocuted; another employee is drowned while on a fishing trip; an unidentified body is found in the powerful whirlpool used to recycle paper; and another workman dies in a set of rollers. John is again a suspect. Then he has several accidents and believes they are due to sabotage. At the bleach plant he is trapped in a small room filling with chlorine gas. Is someone out to get him now?