A passenger of a hijacked airliner who happens to be an airplane engineer works to deactivate a chemical weapons bomb after the hijackers kill the pilot and threaten to kill all the passengers on the plane.
Nelly McDermott, the granddaughter of a prominent politician, loses her husband, architect Adam Cauliff, in a fiery boat explosion. When she's informed that he was murdered, Nell is compelled to find the killer by searching for the truth, with the help of a psychic, which could solve the mystery — or end her life.
During a storm, a group of people are trapped inside a mansion with a killer.
