Wealthy tax attorney Henry Hearst is about to give a speech at an exclusive fundraising party in San Juan, Puerto Rico, as the city celebrates the San Sebastián Festival. He is called to the police station to be questioned about the body he found the day before — that of a young girl who had been raped and murdered. Hearst changes his version of events several times; Captain Victor Benezet and Detective Felix Owens question him about inconsistencies in his story. Hearst quickly realizes that they think he committed the murder, as well as that of another young girl whose body was found days earlier, but at this stage of questioning he is unalarmed. Benezet is under pressure from his boss to free Hearst so that he can give his speech. As there is no conclusive proof, Benezet has to let him go. At the party, a crowd is gossiping and Chantal, Hearst's much younger wife, has to keep her face emotionless. She is questioned later about why she and her husband sleep in separate rooms. Little by little, the story that each of them tells changes, always casting Hearst in a worse light. Hearst first blames Chantal for being jealous. Then, it is discovered he likes cheap, very young prostitutes and visits pornography websites featuring barely legal women. Hearst says that Chantal and her brother-in-law, artist Paco Rodriguez, are lovers. Chantal says that she saw Hearst with her 13-year-old niece Camille, giving her presents and trying to seduce her. She also says that on the night of one of the recent murders she saw her husband washing his blood-stained clothes at night. Hearst adamantly denies molesting Camille, but admits that he has a fondness for younger women. Chantal, the legal owner of the mansion where they live, permits the police to search the premises for hard evidence linking her husband to the murders. In the dark room, they find photographs of the two murdered girls. When the photographs are shown to him at the police station, Henry says that he can't believe Chantal would go this far. Shortly thereafter, Hearst, perhaps due to the realization that his wife thinks he's guilty of the murders and the resulting meaningless as to his own existence, confesses to the murder of the little girl whose body he had previously claimed to find. Just then, while still recording Hearst's confession, detectives are notified that the real killer has been arrested, having been "caught in the act." Benezet and Owens free Hearst, who is still badly shaken by what he has gone through in the previous hours. Chantal attempts to connect with him outside the police station, but he cannot forgive her for turning on him and believing him capable of the murders, and walks away into the crowd of New Year's Eve revelers.
Based on 45 reviews collected by Rotten Tomatoes, 49% of critics gave Under Suspicion a positive review, with an average rating of 5.3/10. The film was given limited release to only 19 theaters in North America, grossing a total of $334,245 during its theatrical run. The film was also given limited release internationally, grossing $752,783 in Mexico, $17,222 in Taiwan and $277,675 in the United Kingdom. The film was nominated by the Mystery Writers of America for the 2001 Edgar Award for Best Motion Picture.
