SHOT OVER THE COURSE of eight years with a minimal crew, Siblings uses factual references as well as events in the actors’ lives, creating a unique documentary-style fictional story. The Helsinki-based twins Jenna and Joni discover they have a stepsister, Jóna, in Iceland. As they get to know her, the siblings gradually start to shape each other. Jenna becomes pregnant and tries to live in Iceland. Jóna has an affair and moves to Finland. Joni decides, while fighting cancer, to quit his job and do something meaningful.