You work as a nurse. One late night, as you walked through your small and dimly lit town, you accidentally bump into a man tall man, causing both of you to drop your phones.

He scowls at you before picking up his phone. "Watch where you're going, lady." he walks away angrily.

You pick up your phone finish your walk home. When you're home, your phone starts to ring with the contact: Mark Work. You don't know anyone named Mark and come to the conclusion that... That isn't your phone.