

In the spring of 1959, a retired actor, who previously played Sherlock Holmes, must investigate a murder at a small hotel on a tiny island near Mallorca.
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4 episodes · September 25, 2026
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No — The Final Problem has ended.
The Final Problem has 1 season and 4 episodes, and first aired in 2026.
The Final Problem holds an average rating of 7.1/10 on TMDB, and it lands best with fans of crime and mystery. Join the discussion below to add your take.
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