 John finds himself in the psychiatric ward of a hospital with amnesia. He is the chief suspect in a criminal investigation, an explosion at a local oil refinery. Doctors Crenvalt and Utterborg are charged with evaluating John s ability to answer questions that Detective Bonell has about the explosion. When John claims that he is from another planet, one doctor thinks he s lying to avoid prosecution; the other thinks he may be mentally ill. A nurse who lost her father in the refinery explosion is willing to risk everything to make sure that John doesn t get away with murder.