Decibel

A former naval officer is targeted by an anonymous attacker who has hidden bombs in crowded public areas, such as a water park and a football stadium. These devices are designed to detonate if the surrounding noise exceeds 100 decibels. As the officer races to stop the attacks, he must confront a hidden secret from a submarine incident that occurred a year prior. He is joined by a reporter, a security agent, and a bomb disposal expert to thwart the insurgent's plans.

Directed by Hwang In-ho, this action thriller is the second film in his career following Spellbound. The movie features a cast including Kim Rae-won, Lee Jong-suk, Jung Sang-hoon, Park Byung-eun, Lee Sang-hee, and Jo Dal-hwan. Produced by Mindmark and East Dream Synopex, the project had a budget of 9 million USD and earned 7 million USD at the worldwide box office.

The film holds a rating of 6.1/10 on IMDb based on 2,200 votes and 6.6/10 on TMDB from 74 votes. Film critics gave the movie a rating of 6.6/10 across 8 reviews, which is similar to the score provided by users on TMDB and slightly higher than the audience rating on IMDb.