Due to a genetic disorder, handsome librarian Henry DeTamble involuntarily zips through time, appearing at various moments in the life of his true love, the beautiful artist Clare Abshire.
Halley is convinced true love doesn't exist based on the crazy relationships around her. Her mother is divorcing her father who is dating a younger woman Halley can't stand. Her crazed sister is planning a wedding but has second thoughts and her best friend has fallen madly in love for the first time leaving Halley to feel even more alone.
A hotel cabana boy falls for the wife of a powerful politico. But when she confesses to the affair, her husband determines to end it forever.
