该剧本季主要围绕象牙山年轻人的婚恋故事展开，刘能、谢广坤携手成立“大龄青年婚姻理事会”，为解决大龄青年单身问题出谋划策，却闹出一系列嘀笑皆非的故事。
The story begins in today Istanbul, when a woman called Işık (Bade İşçil) arrives at an old house. There she recalls the past and friends of her youth. Back in 1998, a group of young people (Eda, Osman, Sinan and Kerem) studying in a school of Istanbul are at risk of exclusion because of their poor behaviour. They are very different from their classmates and, therefore, very lonely. A headmaster and most of the teachers are against them, and only one called Burcu (Pınar Deniz) does her best to protect the youngsters. However, they find out that Burcu is getting relocated, and this means that all of them will be excluded after her departure. In order to prevent this, students unite and make a plan: they will make Burcu fall in love so that she stays in Istanbul. According to the law, after marriage she will be able to choose a place of work by herself. They ask for help from Işık, an excellent student and a girl with a big heart. Soon she becomes a part of their company. This union helps the students change for the better, understand themselves, realize the importance of true friendship, find love and their own way in life. At the same time, their plan helps Burcu change her outlook on life and find true love with a new unsociable teacher called Kemal (Kaan Urgancıoğlu).
十位真实犯罪爱好者受邀前往新装修的冷河汽车旅馆，参加开业周末的活动。这家汽车旅馆曾发生过一起长达30年的未解之谜——撒旦式大屠杀。历史再次重演：客人们被困在旅馆里，在一场比最初更加血腥的疯狂杀戮中，一个接一个地被击倒。
