S3·E4 Stranger Sings / Meter Reader

Barry can’t believe his luck when a cute girl invites him to her place for a drink, but he quickly learns he was duped by a siren and he’s in for way more than he bargained for. When a demonic pandemic strikes, a teenager fights to keep her family safe. But when she realizes they may have been infected, can she find the strength to fight the Devil’s plague?