A deaf, dumb and blind man, Jacques Vauthier, confesses to committing a murder, apparently without motive. He depends on his defense attorney, Delfot , to unravel the mystery behind his actions.
| Actor | Role |
|---|---|
 Michael RedgraveMaitre Deliot | Maitre Deliot |
 Ann ToddSolange Vauthier | Solange Vauthier |
 Leo GennRodelec | Rodelec |
 Kieron MooreJacques | Jacques |
 Richard O'SullivanChild Jacques | Child Jacques |
| JJane HendersonMme. Vauthier | Mme. Vauthier |