Stefan Riker has come from Germany seeking the woman posing as Lisa Bannister and she believes he can cause her to be deported back to Germany. Attempting to help her stepmother, Doris Bannister pretends to be romantically interested in Stefan Riker. During the next few months Stefan Riker receives money and gifts from Doris and seems satisfied. However one night he is murdered and Doris Bannister is accused of murder because her fingerprints are found on a ladder outside of Riker's apartment.

Martin Ellis is sent to jail for stealing the sum of $300,000.00. Ellis is later exonerated thanks to evidence discovered by his wife and the real thief, Charles Brewster, is arrested for the theft. Brewster manages to get out of jail on bail but later turns up dead. Ellis is charged with the killing.

Wally Dunbar seeks Perry's help in securing ownership of his new summer line of swimwear but the sketches are stolen and worse yet, chief designer Rick Stassi is murdered. Wally's girlfriend, Kitty Wynne, who was being blackmailed by Stassi goes to trial for his murder.

When a notorious bank robber's son returns to his hometown it seems as though everyone is interested in missing loot supposedly hidden by the man's father. This leads to murder. Perry comes to the rescue once again.