Smile

You built a horror engine out of one of the most unsettling human expressions, a wide, wrong, unblinking smile, and the simplicity is the strength. The curse passes from witness to witness, each one watching someone grin and then die, which is a transmission premise that owes an obvious debt to The Ring and It Follows, but you dressed it with such clean, cold dread that the familiarity mostly forgives itself. The jump scares are loud, frequent, and, irritatingly, effective.

Sosie Bacon does the heavy lifting as a therapist unraveling under a curse nobody believes, and she sells the exhaustion of fighting something that wears the faces of people she trusts. The smile gag, a simple facial performance, becomes genuinely dreadful through framing and sound design. Kyle Gallner steadies the back half. You also nail the mood, sterile, blue, and lonely, which makes the trauma-and-isolation subtext land harder than the plot strictly requires.

The botch: the curse's mythology is thin and derivative, and once you grasp the rules the film mostly just runs the same scare-loop louder until the climax. The trauma metaphor is sincere but underlined more than explored. Still, the bright side is enormous, this was nearly dumped to streaming, the test screenings were so strong it earned a theatrical run, and it turned roughly $17 million into about $217 million worldwide. Proof that a clean hook and committed execution beat originality at the box office every time.