Lyceum teacher Rita begins to be harassed by a cyberstalker. The girl realizes that there are too many people around her who have good reasons to turn her life into a nightmare. He hits the most painful points: work, students, friends, family, self-belief. Rita is trying to figure out who this mysterious stalker is and what he wants. Sorting through and picking up the keys to her ex-boyfriend, students and colleagues, friends and even relatives, Rita realizes that she can no longer trust anyone.