A lovelorn doctor trying to invent a way to prevent brain damage in comatose patients manages to create a device that can digitally store an individual's memories. After he is jilted at the altar by his fiancee, he accidentally swaps her memories with those of a serial womanizer and realizes that the device can perhaps help him erase the painful events in his own past. Hilarity ensues as he tries to perfect his invention in this memorable romantic comedy that asks the question: "Can you remember who you are if you forget who you were?".