The Apartment

CC Baxter, an insurance company employee, thinks his boss Jeff D Sheldrake has his eye on him for promotion. All Sheldrake has his eye on is the key to Baxter's flat, however, where he can entertain his girlfriend without his wife knowing. Baxter finds out who she is when he falls for lift-girl Fran Kubelik only to find she's Sheldrake's mistress. Torn between advancement and love, he has to make some hard decisions.