Look into the mirror

A flash flood causes an entire village to evacuate into a building on top of a mountain. What happens when Flag looks into a mirror after a shower and realises that another person is in the mirror? People start dying when horrific murders happen. With no where to escape the survivors are stuck and try to find with killer. Secrets will be uncovered and the horrific back story of a man named Lucas will be revealed. Will they survive the flood or will the whole village become extinct?