Film based on the characters of the English writer Arthur Conan Doyle. It tells a hypothetical meeting in Madrid between the legendary detective Sherlock Holmes and Jack the Ripper.
| Directing | José Luis Garci | Director |
| Writing | Arthur Conan Doyle | Characters |
| Writing | Eduardo Torres-Dulce | Writer |
| Writing | Andrea Tenuta | Writer |
| Writing | María San Román Riveiro | Writer |
| Writing | José Luis Garci | Writer |