Javier lives with his mother in a modest apartment. He conducts surveys on the effectiveness of ads. This work provides a humble earning for the two of them. One day he meets Juna at a bus stop. He tries to ask her out, but she refuses. A few days later, they meet again. Slowly a relationship develops, but her plan is to marry someone rich. Javier's wealthy uncle included him in his testament, so Juna talks Javier into killing the uncle.
| Writing | Juan Antonio Bardem | Writer |
| Writing | Manuel de Pedrolo | Writer |
| Directing | Juan Antonio Bardem | Director |
| Writing | Rafael Azcona | Novel |
| Costume & Make-Up | Romana González | Makeup Artist |
| Art | Enrique Alarcón | Art Direction |
| Costume & Make-Up | Concepción Cano | Hairstylist |
| Production | Jesús García Gárgoles | Producer |
| Directing | José María Ochoa | Assistant Director |
| Production | Serafín García Trueba | Executive Producer |
| Sound | José Nieto | Music |
| Camera | Juan Gelpí | Director of Photography |
