Deep within the Chongqing caves, reality unravels.

Driven by an unshakable belief that “loongs”—the majestic beings of ancient legend—still walk our world, a determined man journeys alone to the Cave of Two Loongs (Erlong Cave) in Chongqing, China – a colossal cavern named for the ancient myth of twin Loongs dwelling within. By chance, he joins a local caving team exploring its depths. As they venture further into the abyss, they cross into a realm where the veil between worlds grows thin. Unexplained phenomena plague them; reality and hallucination blur.

Haunted by chilling visions, the man makes a horrifying discovery: the caving team perished in the cave long ago. Trapped between truth and madness, he pushes onward—until he finally confronts the magnificent loong he sought. But in this place of shifting shadows… did he find the legendary being, or the final phantom of his broken mind?

Directed by Jacky Xiao (China)