Keep Quiet (2012) is a Thriller film that follows at the library, Sung-mo picks up the ringing phone of a person on the opposite side of his desk in an unguarded moment, while the person is out. A woman asks Sung-mo to run away with the phone. Keep Quiet is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of thriller movies may also want to explore similar titles below.