Lia, a broken young woman, awaits an important call about a job response on her 22nd birthday, the first spent without her grandmother. While the cell phone doesn't stop ringing, Lia and her friends Tuco and Gael, get ready for an 80's themed party.
Matheus, a young man with self-steem problems, goes to his grandmother's house to spend the carnaval with his family. There, he sees his old friends and finds himself atracted to a mysterious masked person who will send him on a journey of self discovery that will change his relationship with his father.
In the 80s, two young friends, Rafael and Amanda, decide to call to a telephone conversation service called “Dial Friendship”. There, they discover the story of Shadow, a serial killer who lurks the phonecalls and starts chasing the two friends.
