

A former Naval officer with a dark past must face off against an insurgent with a sound sensitive bomb.
Sound
The entire premise hinges on audio mixing. They committed.
Acting
Lee Jong-suk's unhinged bomber energy carries the film.
Direction
Hwang In-ho wrangles genuine tension from a silly hook.
Director
Hwang In-ho
Trivia, insights & behind the scenes
The decibel meter on screen was reportedly calibrated to real audio levels during filming, meaning actors had to actually modulate their volume for takes.
Released during a wave of Korean naval dramas post-2014 Sewol ferry disaster, reflecting national anxieties about maritime institutional failures and scapegoated commanders.