 A young man, the victim of a severe beating, has been hospitalized in Havana. The perpetrator appears to have been a transvestite. Mercedes, a nurse, convinces Frank, an ex-cop, to investigate the case. Taking place entirely over the course of one night (December 28th; the "Day of the Innocents"), the man s hospital room becomes crowded with family and some unexpected visitors, gradually revealing family secrets, hidden desires, and the finally uncovering what exactly happened to the young man.