A duplicitous young man finds success in the dark world of social media smear tactics — but his virtual vitriol soon has violent real-life consequences.

Mula lives with her husband, sick mother and daughter Nina in a countryside house. At the weekend before Nina’s First Holy Communion, her brother with his family come for a visit together with Kaja – Mula’s younger sister, who disappeared suddenly 6 years earlier. Kaja is Nina’s biological mother. Mula is afraid that unstable Kaja might want to take her daughter away.

Operation Danube was the cover name for the invasion of Czechoslovakia by Warsaw Pact armies in August 1968. The fleet of Polish tanks which arrive to liberate their neighbor, ostensibly threatened by a counter-revolution, includes the old tank nicknamed Ladybird, which is the last to leave the barracks.