Uninvited guests: spiders, scorpions, and thousands of ants appear in the tidy space of Kasia’s flat – her teenage son, Oskar, has a passion for terrariums. Over time, his interest in exotic animals begins to spill over the established boundaries, having a real impact on the household’s daily life. The tension between mother and son is mounting. They must work out new rules so that they can continue to live together and prevent their relationship from falling apart.