When the dead body of Karen Hall, an investigator with the State Attorney General's Office Criminal Division, is found in the Hudson River, Detectives Briscoe and Green find that her boss, Alec Conroy, had written off her disappearance as a random kidnapping from an Albany train station. But as more is learned about Conroy's controlling relationships — with the dead woman, with his wife and with a longtime girlfriend — he quickly becomes a suspect.