Synopsis: After returning from a long sojourn to Antarctica, a scientist learns that a hitchhiker he picked up years ago had desperately needed him as his sole alibi against a murder charge. With no witness to back up his story, the hitcher was convicted and executed for the crime. Riddled with guilt, the... After returning from a long sojourn to Antarctica, a scientist learns that a hitchhiker he picked up years ago had desperately needed him as his sole alibi against a murder charge. With no witness to back up his story, the hitcher was convicted and executed for the crime. Riddled with guilt, the scientist launches his own investigation into the murder and soon discovers the tragic truth. [More]