Pop singer Melissa McCammon (Sheena Easton) is about to commit suicide by overdosing on drugs. With her once meteoric career at a standstill and her husband (Xander Berkeley) cheating on her, she sees no hope. Then she encounters Rachael, an ardent fan from the future. Rachael is a time traveler—and an uninvited tourist in Melissa's body. She tells Melissa that her music inspired her future fans to resist a totalitarian takeover, which will succeed if she dies now. However, special authorities are out to punish Rachel for her crime, as time-traveling and using a host body plus changing the past is a serious offense, and she must be taken care of. The authorities from the future want Melissa dead and will resort to anything—including murder—to preserve their version of the past. The final scene shows Melissa on the stage (in her friend Janet's body) singing to an audience.