TL;DR – A fascinating and often confronting look at a very particular type of grief.

Post-Credit Scene – There is no post-credit scene.

Disclosure – I paid to watch this film.

Warning – Contains scenes that may cause distress.

Twinless Review Introduction –

Today, we are looking at a film that is probably the penultimate film of the year for 2025. A movie that was much requested and with which I knew nothing about before pressing play beyond a vague understanding that it was delving into the dark comedy space. Sometimes this can be a burden, but today’s film is one of those interesting jaunts that may be better with the viewer knowing as little as possible before walking in.

So, to set the scene, we open with a screech of tyres, a sound of a thud, and then an awkward funeral. It is very difficult for Roman (Dylan O’Brien) because the deceased in this case is his identical twin brother. After a difficult fight with his mother, Lisa (Lauren Graham), Roman decides to seek out some help and joins a support group for those who lost their twin. It is here that he meets Dennis (James Sweeney), another twin who lost their twin. Roman’s life is spinning out of control, and Dennis is a stabilising factor, until…