In a park in one of the most decent districts of Istanbul, the body of a young high school student studying at a private college is found. The death of Defne, the only child of Hikmet Denizoglu, a wealthy businessman, deeply shakes her schoolmates, especially her father. The brutal murder has filled the entire city with fear and anxiety. While our team tries to calm the chaos after the murder, they also try to solve the murder. Now there is only one question; Who killed the young girl so brutally? As our team begins to solve the murder, they work their way to a surprising ending.