Echoes of... [SPOILERS]

What Dreams May Come - loved ones in guise of strangers.

Signs - clues add up, including things deceased wife said.

Safe Haven - friendly ghost who's only revealed to be such at the end.

Frankly, the Magical Black Friend trope, specifically the variant of a magical man who is God, Angel etc. (Green Mile, Bedazzled...) who appears out of nowhere to help the white protagonist except here it's an Asian man with a false backstory including name, wife, daughter, job.

Wilderness survival movies like Backcountry, A Lonely Place To Die, etc. except danger wholly from elements, not criminals nor animals.