Voice 4: Judgment Hour (2021)

Description:

Revolves around an emergency call center and the employees who attempt to fight crime using the limited information they get from the urgent calls they receive. Kang Kwon Joo is a life-saving voice profiler. Derek Jo, a unit leader at the LAPD who winds up collaborating with the Golden Time Team. A tough perfectionist who refuses to accept even the smallest mistake, Derek Jo will be a force to be reckoned.