Eva, experienced deep sadness after her mother passed away. Her boyfriend, Pasha, tried to console her by inviting her to climb mountain “A”. Together with Vicky and Nisa, they did the mountain “A” climbing, led by Joni. The adventure, which was initially fun, turned into horror. One by one, they experienced unreasonable and life-threatening events. It all started when Eva and Vicky violated the prohibition that Joni had previously conveyed during the climb.