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What is Unspeakable Sins about?
Helena, played by Zuria Vega, is trapped in a controlling marriage to Claudio (Erik Hayser). She plans an escape with her lover, Iván (Andrés Baida), while trying to protect her troubled son. The scheme goes wrong, drawing Helena into the aftermath of a crime and a tangle of secrets among Mexico’s elite. Netflix describes the series as a twisted telenovela; its mix of affair, blackmail, danger and family conflict makes it a relationship-driven thriller as much as a crime story.
Leticia López Margalli created the series. She also created Oscuro deseo, according to Netflix Tudum.
How did it perform on Netflix’s global charts?
Netflix’s weekly Top 10 reports show a strong launch and a subsequent decline. These are historical results for the global Non-English TV list, not a claim that the series ranked first in every country.
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| Netflix chart week | Global Non-English TV result |
|---|---|
| Week of July 28, 2025 | No. 1, with 5.1 million views |
| Week of August 4, 2025 | No. 1, with 6.2 million views |
| Week of August 25, 2025 | No. 7, with 1.4 million views |
The first two figures come from Netflix’s Top 10 coverage, which documented consecutive weeks at the top. The later report shows the title lower on the global list after its peak. Netflix explains that its Top 10 coverage reflects selected countries and territories, and availability can vary by territory; the chart methodology is outlined in the same Netflix Top 10 resource. These 2025 results do not establish the show’s chart position in 2026.
Netflix also listed Unspeakable Sins at No. 4 in Brazil for August 11–17, 2025. That country-specific placement is separate from the global language-category rankings.
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How many episodes are there, and where can you watch?
Netflix Tudum says all 18 episodes are available to stream on Netflix. Its availability statement is not a guarantee that the title appears in every country’s catalog; Netflix notes that availability differs by territory.
Who is in the cast?
- Zuria Vega as Helena
- Andrés Baida as Iván
- Erik Hayser as Claudio
These are the three leads named in Netflix’s official synopsis.
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No. Despite the documentary-focused context in which some viewers may encounter it, Unspeakable Sins is a scripted Spanish-language drama, described by Netflix as a twisted telenovela. Its premise involves fictional relationship and crime conflicts; the official description does not present it as a documentary or a true-crime account.
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