Dr. Diane Weston is a college professor who teaches English literature. Not entirely happy with her life, she trusts a colleague Sally with her desire of an adventurous life. Because she is not getting a lot of sympathy from her husband Carl and teenage daughter Tess, she isn't bothered with the special attention of Jeff. Jeff is a transfer student he moved after the mysterious death of his girlfriend. He immediately falls in love with Diane and explains that she reminds him of his former girlfriend. She initially denies his attempts to seduce her and focuses on recapturing the passion with her husband. However, when he cancels a romantic trip with her to attend a tennis match with Tess, she agrees to accompany Jeff on a trip. Unwantedly feeling attracted to him, she agrees to sleep with him, but soon regrets this decision. She immediately ends their affair, but he isn't willing to stop seeing her and shows aggressive behavior. Diane soon notices that he is stalking her and he even ...
Did You Know?
The working title of this TV movie was "Consensual Relations" but was changed to "Her Costly Affair" due to pressure from star Bonnie Bedelia. See more