10x10 (2018) is a tightly wound British-American psychological thriller that traps viewers in a claustrophobic game of cat and mouse. The film follows Lewis (Luke Evans), a man who meticulously abducts Cathy (Kelly Reilly), a seemingly ordinary flower shop owner, and imprisons her in a small, soundproofed room within his suburban home. His motive isn't initially clear—it's not ransom or random violence, but a deliberate, cold attempt to force her to confess to a specific, hidden transgression from her past.

The film's power derives from its intense simplicity and confined setting. Director Suzi Ewing builds palpable tension almost entirely within the 10x10 foot room of the title, relying on the escalating psychological duel between captor and captive. Luke Evans delivers a performance of simmering, focused rage, while Kelly Reilly is compelling as Cathy, transitioning from terrified victim to a resourceful woman with surprising resilience. Their dynamic shifts unpredictably, blurring the lines between perpetrator and victim as buried secrets come to light.

While the plot mechanics occasionally strain belief, the film succeeds as a lean, mean thriller focused on performance and suspense over elaborate plotting. The mystery of 'why' drives the narrative forward, and the final revelations reframe everything that came before. For viewers who enjoy tense, single-location thrillers anchored by strong performances—films like 'Buried' or 'Panic Room'—10x10 is a gripping, if modest, entry in the genre worth watching for its relentless atmosphere and compelling central duel.