Dance to Death (2017) on Netflix

Moscow, 2070s. In a sealed bunker in the post-apocalyptic ruins of Moscow, young people struggle against each other in a deadly dancing tournament. Only the winners will live.

Moscow, 2070s. The old energy technologies, such as oil and coal, were lost decades ago during the nuclear war. But a new technology has been developed that converts the human body directly into energy, leaving behind only a flurry of gray ashes. In a sealed bunker in the post-apocalyptic ruins of Moscow, young people struggle against each other in a deadly dancing tournament. The winners will live. The losers will be consumed for energy to power the city. One of the young people in the bunker is Kostya (Ivan Zhvakin), who was captured during a police raid and forced into the tournament. There he meets and falls in love with Anya (Lukerya Ilyashenko), the daughter of a high-ranking official who has willingly offered herself to the tournament for the sake of the city. Who will survive?

Year 2070, post-apocalyptic ruins of Moscow destroyed during the nuclear war. The remains of the inhabitants live in an underground shelter - actually almost a city. The most popular pastime here is the dance tournament, in which young people take part, but they are not ordinary competitions - they are games of death, where only the winner can survive in the Arena. From the bodies of defeated dancers, energy is generated that powers the force field to protect the underground city from radiation. The tournament's current program is disturbed by a boy who decides to save his girlfriend, a defeated athlete who is about to die.

—riverworld