The nuns of Saint Theodouli are ready to head to their new monastery when a sniper strikes, killing one of them. Forced to witness the killer's face, they instantly become targets themselves. Deputies Sofianos and Tsakalakis smuggle them to an abandoned monastery outside Athens for safety, while pursuing the assassin. But peace eludes them there too. Strange things are happening around them: the abbess doesn't know the Orthros, the monastery has dealings with foreigners, and a dead man's wallet turns up by the bell tower. With the killer still on the loose, the nuns decide to take matters into their own hands. Who will reach their target first?