A teenager (guest star Brighton Sharbino) disappears after schoolmates make her the subject of a vicious cyberbullying attack.

Starring Mariska Hargitay (Lt. Olivia Benson), Kelli Giddish (Det. Amanda Rollins), Raúl Esparza (ADA Rafael Barba) and Peter Scanavino (Det. Sonny Carisi). Also guest starring Madison Pettis (Stacy Vanhoven), Colton Ryan (Andrew Drake) and Steve Rosen (Counselor Guthrie).

No Good Reason airs Sunday 29 October on Universal Channel.