B.S. I Love You (1971)

The story of a young man on the way up.

When young advertising exec Paul Bongard gets involved with his attractive female boss, he discovers that the affair has fast-tracked his climb up the corporate ladder. Paul's career gets another boost when he starts up with the boss's daughter. Meanwhile, his childhood sweetheart, Ruth, is patiently wondering when, if ever, he'll propose to her.