Sisu is a meal made of few ingredients. The new film from writer-director Jalmari Helander is a barebones Finnish thriller that feels deeply indebted to not only western auteurs like Sergio Leone but also contemporary action classics like John Wick and Drive. Despite boasting a significantly smaller budget than either of those films, Sisu often finds simple ways of adding extra flavor to its story — namely, through a series of B-movie title cards and a full-throated musical score courtesy of Juri Seppä and Tuomas Wäinölä.
