Four couples in crisis attend a multi-faith Conjugal Love retreat. Each participant carries a very clear idea of what she hopes to achieve. However, the strange tasks ordered by the monitors continually disrupt personal plans. The confusion increases when the same monitors stop hiding their conflicts, forcing each participant to assume an unexpected responsibility despite the consequences.
Unfortunately the movie The Heretics is not yet available on HBO Max.
| Crew | Alfonso Lerma | Script |
| Production | Giada Sporzon | Production Assistant |
| Directing | Jesús Eguía Armenteros | Director |
| Production | Sara Ramón | Production Assistant |
| Production | Alfonso Lerma | Production Manager |
| Sound | Emilio López Pérez | Sound Editor |
| Production | Mirian López Francos | Production Assistant |
| Sound | Manuel Garrido Moreno | Sound Editor |
| Costume & Make-Up | Laura Zutel Agnoletti | Costume Designer |
| Costume & Make-Up | Adriana Vico | Makeup & Hair |
| Sound | Álvaro Tortajada | Sound |
| Production | Julia Aledo | Production Assistant |
| Writing | Jesús Eguía Armenteros | Screenplay |
| Production | Jesús Eguía Armenteros | Producer |
| Editing | Guzman Rosado | Editor |
| Camera | Guzman Rosado | Director of Photography |
| Production | Sergio Álvarez Moreno | Executive Producer |
| Production | Julia Aledo | Location Manager |
| Production | Diana Eguía Armenteros | Co-Producer |
| Production | Laura Zutel Agnoletti | Co-Producer |
