Jarmila Slezáková, a young woman convalesces badly at home after the results of a heart attack which she suffered some time ago. After the doctors have results of the examinations they consider to hospitalize her again. They would like to settle it with her husband, their colleague. But the attractive doctor Slezák made up a story about his participation in a scientific seminar and he left with his lover, a nurse Petra to a summer house.

Jack Duluth, together with Ronald Sheldon, is the owner of a wealthy publishing house and considers his co-owner to be his best friend. That's why he is greatly upset that his son Bill has fallen in love with Ronald's young new wife Jean. Jean and her poor, eccentric family are completely financially dependent on Sheldon. Especially her father, an unrecognized writer who expects the publisher to publish his controversial writings. However, the young people's mutual romantic attraction soon becomes apparent, and Sheldon explodes. He intends to sever his friendly ties not only with Duluth and his son, but also to expel his wife and her family from his home. The next day, however, the servant finds him shot dead. Bill is arrested, having taken the murder weapon.