The fourth part of the Soviet TV series based on Arthur Conan Doyle's stories about Sherlock Holmes. The film was shot based on the story "The Sign of Four" and the story "A Scandal in Bohemia".
| Writing | Arthur Conan Doyle | Novel |
| Directing | Igor Maslennikov | Series Director |
| Writing | Igor Maslennikov | Screenplay |
| Production | L. Petrov | Administration |
| Visual Effects | Viktor Okovityy | VFX Artist |
| Costume & Make-Up | I. Kunina | Assistant Costume Designer |
| Directing | Arkadiy Tigay | Co-Director |
| Visual Effects | Yuriy Dudov | Visual Effects Camera |
| Costume & Make-Up | Lila Zavyalova | Makeup Artist |
| Directing | Natalya Yashpan | Assistant Director |
| Sound | Asya Zvereva | Sound Director |
| Directing | Viktor Sergeev | Co-Director |
| Costume & Make-Up | Nelli Lev | Costume Design |
| Directing | Tatyana Komarova | Assistant Director |
| Production | A. Naumovich | Administration |
| Art | N. Usanova | Property Master |
| Costume & Make-Up | Nelli Svetchina | Costumer |
| Production | Evgeniya Dikhnova | Production Manager |
| Editing | Lyudmila Obrazumova | Lead Editor |
| Camera | Alik Nasyrov | Camera Operator |
| Camera | Aleksandr Ustinov | Assistant Camera |
| Directing | M. Ivanova | Assistant Director |
| Art | Rimma Shtil | Decorator |
| Lighting | Evgeniy Stepanov | Gaffer |
| Sound | Vladimir Dashkevich | Original Music Composer |
| Production | A. Metelitsa | Administration |
| Camera | Yuri Veksler | Director of Photography |
| Art | Berta Manevich | Production Design |
| Costume & Make-Up | Lyudmila Eliseeva | Makeup Designer |
| Writing | Nikita Chirskov | Script Editor |
| Editing | Svetlana Smolina | Assistant Editor |
| Sound | Aleksandr Dmitriev | Conductor |