| Director | Lee H. Katzin |
|---|---|
| Budget | $1.9 million |
In 1971, the British photographer Richard Bryant (Patrick Jordan) dives into a deep mountain lake, the "Finstersee", and retrieves a heavy box. Soon afterwards two local men confront him, demanding to know where he has put the chest. When Bryant refuses to answer, the younger man strikes him, causing Bryant to fall and strike his head on a rock.