Claire Olger is hitchhiking because her purse was stolen at the bus station and is picked up by Michael Greeley. He loses control of the car and has an accident due to his being intoxicated. Arriving at the scene of the accident, the police find Claire in the driver's seat. The district attorney's office questions her but do not believe her story about another driver. Her friend, Doris Stephanak, asks Perry Mason to help. When Perry is unable to contact Claire at her hotel, he goes there and finds Michael Greeley dead in her room. The police accuse Claire Olger of murder, realizing Michael Greeley fits the description of the man she claimed was driving the car and believe she had motive and opportunity.

Advertising executive Herman Albright is in the wrong place at the wrong time wearing the wrong clothes. These mistakes cost poor Herman his life in a case of mistaken identity. Perry is called on to defend the fashion model charged with the crime. It seems as though Herman had been hitting on her for quite a while with no success.

Lola and Jeff Bronson are going through a divorce and can't wait to be rid of each other until Bill Ryder sabotages Jeff's business and makes a play for Lola. Ryder is then found dead with three bullet holes in his body and Jeff and Lola are the two prime suspects. Now they battle to cover for each other .