While conducting an inventory of a home whose owner died intestate, tax official Ralph Duncan comes across $153,000 in very old currency hidden under a drawer. The money is stolen from his briefcase so he consults Perry Mason.
Amory Fallon returns after a long business trip to Mexico to find one of his plants burned and with a very suspicious mind. He doesn't go home and seems to trust no one. When his partner is found murdered, he is charged with the murder.