Day 21 is the time that patients can spend in the hospice. Time here pulsates according to inner cycles: it suddenly contracts, then stretches, then it returns to the usual rhythm. Chambers, memories, faces change. The stories of two heroes alternate. Random acquaintances, for whom the conversation about death becomes a part of life.
Irina Mikhailovna often speaks of euthanasia, although she is still interested in life. Sergei Alexandrovich, on the contrary, is not ready to leave his relatives, but his condition worsens. The film "21 Day" is not a journalistic report, but a cinematic study about human fears, but most importantly - the ability to overcome them.