| Director | Edward L. Cahn |
|---|---|
| Genre | crime film |
| Runtime | 57 min |
| Country | United States |
Many Alcatraz prisoners have volunteered to ingest an experimental serum that could cure a fatal blood disease. They have been promised parole in exchange for their participation. During the experiments, notorious racketeer Barry Morgan steals nurse Joan McKenna's scissors and stabs convict Eddie Ganz to death, then escapes.
The medical tests are abandoned, and the vaccine is called a failure. Joan is upset because the serum could help her brother Dick, who is afflicted with the disease. Dr. Ross Williams, who invented the medicine, and Joan attempt to understand why Morgan had reacted in a violent manner during the experiment. Ross is beaten by one of Morgan's thugs, Duke Shaw, and threatened to cease his pursuit of Morgan.
The trail leads Ross and Joan to Lake Tahoe and lodge owner Ethel Ganz, the dead inmate's stepdaughter, who points a gun at them. Eddie had hidden $250,000 in stolen loot that she found, and she is now married to Morgan, with whom she plotted the murder and prison breakout.
Morgan and his henchmen are caught and sent to jail, and the serum is given another chance.