Sister Hope built a quiet and safe life around her vows. But that peace is shattered when she crosses paths with her ex again, Professor Alessandra, a theology professor in a university near the church. Long before Hope chose the church and Aless chose her career, they were each other's first love. Their relationship ended years ago with a painful goodbye. Now, they are forced to work together every day. Being close again brings back all the old feelings they tried so hard to bury. Suddenly, every heartbeat feels like a sin. Will they be a sinner? Or will they find their way back to the only sanctuary they've ever known?