Six twenty-something friends are spending New Year's Eve at a summer house at the river. The host, Nicolás, brings his ex-girlfriend Pilar with whom he just had a one-night stand. But, Nicolás hits on every other girl including the brooding Cata and the voluptuous Belén. When Nicolás unexpectedly falls into bed and then into love with the high-strung Manuela who also happens to be his best friend's girlfriend, the last laugh is on him.