[s1e10] Open - And Shut

After a season of red herrings—from the Dimas family’s secret business to Sting’s supposed involvement—the trio of Charles, Oliver, and Mabel finally narrow down their search. The episode reveals that the real killer was Jan, the bassoonist who had become Charles's love interest.

" Open and Shut " (Season 1, Episode 10) is the explosive first-season finale of the Hulu hit series . [S1E10] Open and Shut

Since that first season, has grown into a massive success, with its fifth season having recently concluded in October 2024 and a sixth season already confirmed. After a season of red herrings—from the Dimas

The finale leans heavily into the history and hidden passageways of the Arconia, showcasing how the building itself is a character in the story. The Final Twist Since that first season, has grown into a

We see Jan's manipulative side as she attempts to poison Charles, just as she did Tim. The tension peaks in a race against time to stop her before she can unleash a toxic gas through the building's vents.

The ultimate "smoking gun" was a bassoon cleaner found in Tim Kono's apartment, which Mabel eventually connects to Jan.

Just as the trio celebrates their victory on the roof, the episode ends on a shocking cliffhanger. Mabel is found in her apartment covered in blood, standing over the body of Bunny Folger, the building’s board president.