Mimesis

One night, a strange rain began to fall. Those who got wet were changed — no longer human. They became Mimeses: beings that could copy voices, actions, and even the memories of others. Nobody knows how or why. Four survivors found an old tram that still runs. During the day they stop to scavenge for fuel and spare parts. At night, the rain returns, and if the tram stops, the Mimeses will come. But the Mimeses copy people perfectly. Is the person standing next to you really your ally?