"Maybe no one will ever believe my story. But it really did happen…" Kaifeng wakes up to a terrible hangover. His heart aches for his lost wife, Qiujie, as memories of the accident rush back to him. It was meant to be a romantic climbing holiday. Both passionate climbers, they decided to summit a mountain in the Himalayas to celebrate their anniversary. But an avalanche dooms him to a lifetime of regret. Qiujie, the love of his life and the mother of his son, is gone forever. In despair, Kaifeng turns to a spirit medium for advice on how to bring her back. And to his shock and joy, Qiujie really comes home. But she remembers almost nothing, including their son and the fatal accident. “Only those who love Qiujie will be able see her spirit. You must never let her know that she’s a spirit or she will disappear forever,” says the medium. Kaifeng knows that she won't be able to stay forever. He can only try to keep the secret as long as possible with his son. Without letting her know, they try to keep her indoors and away from others while blissfully reliving the wonderful times they had before the accident. Soon the Himalayan climbing accident is uncovered and a body found. The police begin their investigation. In the meantime, Qiujie discovers at a party the devastating truth that no one there can see her. She realizes that she is a spirit that must soon part with her husband and their son. She completely falls apart. Using the short time remaining to her, she works to leave a fitting legacy of memories for the future of her family.