Three close friends discover a forgotten menstrual ritual in an old book. In an Italian cove near the hometown of Saint Maria Teresia Albrici, numerous female pilgrims are said to have menstruated together in the sea during the Middle Ages to experience a special bond. Without hesitation, the young women set off on a road trip to Italy. "And the whole world turns red, red, red," they sing together into the night.

A power failure puts three households in a state of emergency. In the first flat they were just about to start a party, now they are all sitting together by candlelight. In the neighbouring flat, the residents see their conspiracy theories confirmed - after all, they have been preparing for this moment for years. And while one floor below a young man is drowning his lovesickness in vodka, there is someone else stuck in the lift.