Release Message:  When a down-at-heel, alcoholic physician discovers a medical kit, based on future technology, accidentally left in the wake of a time-travel expedition, he becomes a dispenser of miracle cures. From an original story by Cyril M. Kornbluth.

Description:  DŽja vu: as Guy Birkett goes through the day he has a nagging feeling that he's been here before, experienced this already; except the details are always different. Is it conceivable that he is merely a simulacrum, the ultimate in consumer market surveying? He finds there is a reality behind the reality he knows; but for a pawn to question the reality of the chessboard is a perilous undertaking.