A lonely young professor with a tragic past, Lauren develops a close friendship with her student, Siri. Risking her job, Lauren travels to Siri's home in Sweden, where she becomes drawn to Siri's brooding brother and discovers her new friend has her own demons. The trip culminates in an all-night Midsommer's Eve celebration, with life-altering consequences for both women. Steeped in Swedish folklore, this lyrical and darkly compelling meditation on grief and human connection is as dazzling as the titular "all-night sun."