Twinless - Official Trailer (2025) Dylan O'Brien

Watch the official trailer for Twinless! In theaters September 5, 2025.

Roman returns to his hometown for the funeral of his identical twin, Rocky. Rocky was extroverted, intelligent, gay, and adored by many – Roman’s exact opposite. Untethered from his other half, Roman finds support in the form of a twin bereavement group. It’s here that he sparks an instant connection with Dennis, who reminds him of his late brother. A friendship for the ages, the chemistry between Dennis and Roman has an almost too familial quality to it.

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