The Hour of Truth (1977)

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.