A ticking-time-bomb insomniac and a slippery soap salesman channel primal male aggression into a shocking new form of therapy. Their concept catches on, with underground "fight clubs" forming in every town, until an eccentric gets in the way and ignites an out-of-control spiral toward oblivion.

Ingrid and Martha were close friends in their youth, when they worked together at the same magazine. Ingrid went on to become an autofiction novelist while Martha became a war reporter, and they were separated by the circumstances of life. After years of being out of touch, they meet again in an extreme but strangely sweet situation.

A couple's relationship is tested when uninvited guests arrive at their home, disrupting their tranquil existence.