My patient, a 37-year-old homemaker, gazed at the man in the red plaid shirt as he sat on the couch in her living room.

“Who are you?” she asked.

There was something familiar about him. He wore her husband’s boots, but the shirt made him look like a truck driver.

“Yeah, and who are you?” the man replied with a laugh. “Come here and give me a kiss.”

She gave the man a peck on the cheek, but she felt guilty, fearing that her husband would arrive at any moment and admonish her. Not only did the man want a kiss — he also wanted sex!

Discouraging him, she sat down to talk. The man spoke just like her husband and knew personal facts about her. It occurred to her that her husband had been mysteriously replaced by this fellow. How it happened she had no idea; she knew only that it had.