A scientist on the run with a valuable formula is murdered, and the only witnesses are eight blind people.
| Actor | Role |
|---|---|
 Dennis PriceAllan | Allan |
 Peggy Ann GarnerHelen Hildbrand | Helen Hildbrand |
| CCharles JacquemarProf. Hildebrand | Prof. Hildebrand |
 Wolfgang BüttnerKiller | Killer |
| CChristian DornCarl | Carl |
 Ernst Fritz FürbringerIntelligence Chief | Intelligence Chief |
| GGerhard KittlerKiller's Boss | Killer's Boss |