İlyas and Melike are a happy family with their 18-year-old daughter Ceren and their 6-year-old son Kaan. Zeynep and Tuğrul on the other hand are an unhappy family who keep arguing even when their 12-year-old son Efe is around. One day, Efe kills Kaan as a result of an emotional attack and the paths of these two families cross in a bitter way. While Melike and İlyas are messed up; Tuğrul blames his wife for the incident. Demet the pedagogue and Sedat the police officer are the two people who are going try to find out why Efe killed Kaan. As a result of this trauma all of the family members are going to go through a transformation, and we will be watching transforming effect of this trauma.