The Ooze

Bran's taking the recycling down to the basement when the lights go out and the elevator stalls . Bran's phone's dead, he can hear screaming, but he can't get out. Eventually, he manages to pry the doors open to find that something's very wrong. His own mother can't remember his name, there is this black slime dripping out of her ear and then she kills their cat. Bran runs.