The Tunnel (2014 film)

The Tunnel (lit. Tunnel 3D) is a 2014 South Korean horror film directed by Park Gyu-taek.

Plot
A group of friends are invited to the launch party of a luxury resort. A strange man barges in, and scares everyone away by declaring that they will all be killed by a curse. They return to the resort to find the strange man watching them, and accidentally end up killing him. They decide to dispose of the body in a coal mine, but get trapped inside the dark tunnels facing the buried horrors within.

Cast

 * Jeong Yu-mi as Eun-joo
 * Yeon Woo-jin as Dong-jun
 * Song Jae-rim as Ki-cheol
 * Jeong Si-yeon as Se-hee
 * Lee Si-won as Yoo-kyung
 * Son Byong-ho as Mr. Kim
 * Lee Jae-hee as Young-min
 * Ham Sung-min as Small boy
 * Min Do-hee as Girl
 * Woohee as Hye-young