The film begins with a school teacher bidding farewell to his students, who are leaving for the summer. As he is heading home he notices two of his students are hitch-hiking and picks them up. He invites them over for dinner and lodging, which they accept.. The majority of the film from this point on is set at the mansion, where the two students turn from guests to prisoners under the teacher's command.
| Actor | Role |
|---|---|
 Javier EscriváDon Luis | Don Luis |
 Inma de SantisJulia | Julia |
 John Moulder-BrownMiguel | Miguel |
 Simón AndreuJaime | Jaime |
 Joaquín PamplonaNot listed | Not listed |
 BlakiDamián | Damián |
| PPaul BensonNot listed | Not listed |
| FFrancisco José EscriváNot listed | Not listed |
 María José ParraNot listed | Not listed |
| IIgnacio CamposNot listed | Not listed |
| CCarlos Larrañaga Jr.Not listed | Not listed |
 Vicente Escrivá(uncredited) | (uncredited) |