Tuner — Ending Explained

As Harry's dementia worsens, Niki takes on higher-stakes vault heists with Uri. During a luxury gala heist, digital systems fail, forcing Niki to crack the vault purely by acoustic listening. Uri leverages Niki's hyperacusis against him with an airhorn and reveals he knows about Harry. Although Niki successfully cracks the vault and clears Harry's medical debts, Uri realizes Niki's undetectable safecracking makes him an irreplaceable asset who can never leave. The film concludes with Niki playing the piano for Ruthie on a conservatory stage despite physical pain, achieving artistic catharsis while Uri's criminal grip looms over his future.

The film invites distinct readings: The Tragic Faustian Trap suggests Niki has irreversibly compromised his future, becoming a permanent asset to Uri's syndicate. Conversely, The Tonal Liberation view suggests that safecracking empowers Niki to stop hiding from sound, ultimately reclaiming his agency and musical voice.