Henry Roth is a marine biologist in Hawaii who spends his free time with pretty tourists whom he quickly forgets after they leave the islands. When he meets Lucy Whitmore, however, everything changes. This time he truly falls in love, but the problem is that Lucy suffers from short-term memory loss following a traumatic car accident. Besides the not so unpleasant problem of having to pick her up every day a day anew, Henry also decides that he will try to save her. A romantic comedy with elements of "Memento" and "Groundhog Day", as well as the entertaining presence of Adam Sandler which puts a light and slapsticky spin on the metaphysical elements in the plot.