· United Kingdom · 1967 · 1h 33m The Investigation ✓ Seen + Watchlist ↗ Share No poster Director Cast Alan Webb as The Judge Peter Copley as Counsel for the Prosecution John Paul as Counsel for the Defence George Sewell as Witness William Moore as Witness Laurence Payne as Witness Crew Peter Weiss — Writer Derek Bennett — Producer Synopsis Television adaptation of Peter Weiss's play about the Frankfurt Auschwitz trials. Key Collaborators Peter Weiss Writer Derek Bennett Producer Follow the Thread Agent-readable