Just yesterday, Ida was living the ordinary life of a Stockholm student. Today the police are looking for her and unknown people are trying to kill her. And it all started with a mysterious box that the Russian physicist Lobov gave her... Only a moment ago he asked to hide this thing and not give it to anyone... And the next minute his body collapsed at Ida’s feet. Murder! Having miraculously escaped from the city, Ida soon realizes that a real hunt has begun for her. The life of an ordinary student Ida changed in one day. A moment ago, an unfamiliar man gave her the box, and now with the last of his strength he whispers: “Don’t give them anything... Tell them that I love her...” Ida runs away from him in panic! In the morning she finds out that she is wanted as a murder suspect. Having miraculously escaped the city, the girl wanders through a snow-covered forest. And suddenly she is surrounded by wolves...