女职员：职场恋爱

　　Five haunted-house enthusiast friends are still trying to recover from the trauma of being kidnapped the previous Halloween by the Blue Skeleton — a group who takes “extreme haunt” to another level. They decide to face their fears in order to move on and go back out on the road to find more haunted houses. However, ominous signs of the Blue Skeleton start appearing again…

　　Five members of the mountain bike club, Sangaja. To ride a mountain bike, we head to Chiaksan Mountain, where Min-joon's Uncle villa is located. After arriving at Chiaksan Mountain and enjoying the ride, strange things began to happen to the party…. And something unidentified chasing them! A desperate survival game for Sangaja's party to survive on Chiaksan Mountain begins.

四个背景经历各不相同的年轻人在北京的一个出租屋里喝酒，但因为想法不一，互相有一些矛盾然后打了一架，警察介入，之后结束。

林宇与三名女孩遭遇空难，不幸流落至一座荒无人烟的孤岛，刚上岸便遭遇一头凶猛的变异双头蛇袭击。危急时刻，容貌靓丽、身手矫健的当地女土著颂雅及时出现，凭借对岛屿环境的熟悉，成功引开双头蛇，将四人救至一处隐蔽山洞。在艰难的孤岛求生中，林宇作为唯一的男性主动守护众人，朝夕相处间，他与四名女孩渐生情愫，陷入了两难的感情纠葛。好景不长，思瑶惨遭双头蛇伏击吞噬，若琳也不幸遇害。悲痛之下，林宇、婉晴与颂雅联手，借助颂雅祖辈流传的经验，摸清毒蛇怕强光和特定植物汁液的弱点，巧用简易工具设下陷阱，最终成功消灭双头蛇，林宇也找到情感的归宿。