The story of Forever develops in almost real time. It takes place during two and a half hours in one night. We witness what is going on behind an apartment door: the hellish psychological moments of a couple where the thin line between love and hate breaks down. Tanja and Mare have been married for five years now. As is often the case, they seem to be a happy couple to the outside world. However, the relationship is on the verge falling apart. It is 3.30 am Friday night and Tanja’s husband leaves the keys in the door so that she has to ring the bell when she comes home. Instead of going to sleep, Mare starts questioning his wife. What begins with Mare's jealous whims is followed by various humiliations, including domestic violence. But when the police come, the woman is not able - or is unwilling - to report on her husband. The power game continues, the dialogue masterfully reveals all the intimate secrets of this marriage.