Samantha Who?:

While out at a club with Andrea, Samantha is hit on and comes to realize that she has no memory of sex. In essence a virgin, Samantha asks her friends and family what the experience is like and what she should do next. Dena thinks she would wait and enter into things gradually, while the more wild Andrea thinks she should throw herself at someone straight away. Samantha wrestles with the idea of re-experiencing her 'first time' or holding off and waiting for the right guy.

Once more she finds herself out with Andrea and decides to take drastic action. But just as things are progressing, a vital element of Sam's memory returns. But sometimes your memory can play tricks on you.