"Interrogation" is a true story that took place in 1983. Young American Eric Fisher discovers the lifeless body of his own mother. From being a witness, he unexpectedly becomes the main suspect. An interrogation begins, during which the police try to extract a sincere confession from him. Despite his denial of guilt, Eric is sentenced to life imprisonment. When new circumstances of the case come to light, a local detective reopens the investigation. Who really committed the crime?