The Seventh Grave
- Episode aired Feb 28, 1973
- TV-PG
- 1h
A newspaper publisher calls Cannon to the small town of Milling to investigate a series of murders of young women.A newspaper publisher calls Cannon to the small town of Milling to investigate a series of murders of young women.A newspaper publisher calls Cannon to the small town of Milling to investigate a series of murders of young women.