A young man meets his soulmate, who suffers from a memory disorder which wipes her memory clean each evening.
More than content with a life of one-night-stands, Henry Roth (Adam Sandler) decides to give up his noncommittal lifestyle when he meets and falls for Lucy (Drew Barrymore). However, when he discovers that Lucy has no short term memory, Henry finds himself having to win her heart again with every new day.