The name of a horror movie that just came off the shelf.

Fierce Snow Mountain tells the story of a couple climbing the snow mountain with their teammates. Unexpectedly, the weather changed suddenly, and my boyfriend left his girlfriend to stay in the camp. Three days later, there was still no news of the climber. On the seventh day, everyone went down the mountain, but her boyfriend was not there. They said her boyfriend was killed by an avalanche on the first day! They comforted her, hoping that he would come to her on the night of resurrection. Late at night, her boyfriend appeared in front of her covered in blood, telling her that on the first day of the mountain disaster, everyone died, only he was still alive. ...

Who the hell are they? Who's a ghost? Who should she trust?

This film is based on the popular novel Who Do You Believe?