Five strangers hiking on foot stumble into a rift between dimensions and discover a gigantic porthole separating two worlds. Inside, a ghostly Heavenly King has been trapped for a century, alone with a long corridor lined with gilded dragons. Su Wan screams in fright, shattering the barrier between space and time and allowing the ghost to sense the outside world. The dragons' eyes on the pillars turn in unison, the porthole cracks, and the mist turns blood-red. The group is trapped at the boundary between the two worlds, while Old Xu's backpack hides a secret treasure that answers a lingering soul. Danger closes in with every step.
