Kang Kwon-joo (Lee Ha-na) is a tough policewoman who is gifted with perfect psycho-acoustics skills and went for voice profiling.

The Golden Time team solves urgent real-time incidents from phone calls received through the emergency service line.

They race through the precarious time left for crime victims, who are held captive or being chased by their assailants and save them from the imminent danger.

One day, a mysterious serial killer named Dr Fabre appears, A voice profiler police and center director of 112 call center, Kang Kwon-joo teams up with Dispatch Team Leader and stubborn Detective Do Kang-woo (Lee Jin-wook) to solve that crime.

They try to arrest Dr Fabre while solving other diverse cases, including voice phising, date harassment, and illegal car racing.

The Golden Time team solves urgent real-time incidents from phone calls received through the emergency service line.

They race through the precarious time left for crime victims, who are held captive or being chased by their assailants, and save them from the imminent danger.

In order to fight against the cartel and save lives within the golden time, a talented voice profiler police Kang Kwon-joo executes instructions to the detective field units, Do Kang-woo and his team.

[42][43] Halfway airing through the series, the drama was submitted for Korea's censorship board review due to viewers' complaints of it showing excessive violence.

[47][48] Ratings for the first season set new records for OCN dramas when it aired in South Korea, proving to be a hit among viewers.