Two young journalists simulate a murder, but the scheme backfires when the mock victim disappears.
| Actor | Role |
|---|---|
 John MeillonJohnnie Gordon | Johnnie Gordon |
 Ann FirbankMildred Jones | Mildred Jones |
 John ThawDavid Jones | David Jones |
 Peter BowlesJoe | Joe |
 Graham CrowdenMurchie | Murchie |
 Arthur BroughGroves | Groves |
 John CollinDet. Insp. Briggs | Det. Insp. Briggs |
 John AbineriArthur | Arthur |
 Geoffrey BayldonLane | Lane |
 Michael RobbinsSergeant Harris | Sergeant Harris |