A class of students stays at school for a camp in an elite study group to finesse theirs and the school's grades. Upon the first night, the swimming coach is found murdered. As the students try to figure out what happens, a voice informs them that if they don't figure the murder out, students will begin dying in quick succession.
Cast
Kim Soo-ro
Cha Seon-sang
Hwang Jung-eum
Eun-su
Park Ji-yeon
Se-hee
Yoon Shi-yoon
Kwan-woo
Park Eun-bin
Na-rae
Ji Chang-wook
Soo-il
Yoon Seung-ah
Tae-yeon
Lee Ah-jin
Ji-yoon
Nam Bo-ra
Hyeon-a
Yeo Min-joo
Yong-ran
Son Ho-jun
Jung-bum
Kwon Hyun-sang
JK
Park Jin-su
Geun-sik
Yool Chan
Won-ho
Kim Byeong-ok
Teacher Kang
Kim Min-young
Min-jeong
Kim Bo-mi
Kyung-hee
Jeon Boram
Ji-ae
Lee Yong-nyeo
Jung-bum's Mother
Bae Soo-kyung
Unknown
Crew
Yoo Sun-dong
Director, Adaptation
Lee Gong-ju
Writer
Lee Jung-hwa
Writer
Lee Jin
Editor
Lee Si-hoon
Production Design
Lee Jin-suk
Costume Design
Yi Eun-ju
Production Sound Mixer
Yu Cheol
Lighting Director
Park Yeong-su
Visual Effects Supervisor
Lee Sang-ha
Stunts
Kang Pooung
Martial Arts Choreographer
Kim Baek-cheol
Digital Intermediate
