This article from Collider recommends A24's horror film Undertone to fans of the year's breakout hit Obsession. While Curry Barker's Obsession — made for under $1 million — has earned a staggering $400 million worldwide since its May 2026 release, the piece argues that Undertone is an overlooked, lower-key alternative worth seeking out. It is currently the number two most popular film on HBO Max, where viewers are discovering it, and the writer suggests watching with headphones for full effect.

Written and directed by Ian Tuason, Undertone follows Evy (Nina Kiri), a young Catholic woman caring for her unconscious, dying mother while hosting a supernatural podcast called The Undertone; a demonic entity emerges after her co-host Justin (Adam DiMarco) is sent a series of disturbing audio clips. Made for just $500,000 and filmed entirely in Tuason's real-life childhood home in Toronto, the film earned $21 million worldwide and holds a 74% score on Rotten Tomatoes. The article praises its use of limitations as strengths — its claustrophobic single location, focus on Evy's isolation and, above all, its unnerving sound design — and notes that Tuason's success landed him the director's job on Paranormal Activity 8.