Aspiring filmmaker Hyunsu offers Miju a role, and they fall in love. As time passes, Miju grows tired of his dreaming while she struggles at work. A fight leads them to experience different July 7ths, leaving their future uncertain.
It's 3 minutes for hearers, but a life for the callers. A crime thriller chasing even the slightest sounds to rescue people's lives calling for urgent help.
