Lazy, uneducated male students mostly coming from money, share a very close band. They live together in the dormitory of this private highschool, where they daily plan their latest pranks on teachers or the other classes. Because of the financial crisis, the headmaster agrees to enroll female students. As the new students try to fit in, a struggle between both parties start, trying to prank the other part away. The prank war continues until PE-Teacher decides to take the class out on a trip for a becoming scouts.

Saban, Ramazan and Bayram are sailors in an Ottoman Navy and Hüsamettin is their commander. Hüsamettin's aide Ramazan, Saban who is foster son of Hüsamettin's sister and Bayram who is married to Hüsamettin's niece stays at Hüsamettin's family residence. Hüsamettin's sister thinks Ramazan is her foster son Saban when she realizes her mistake she introduces Ramazan to her brother as her son in law Bayram since she was afraid of Hüsamettin's short-tempered character. Things get complicated when real Saban and Bayram come to the residence. Now Saban has to be Ramazan and Bayram has to be Saban. Meanwhile, a gulyabani (a ghoul from Turkish folklore) haunts the residence.

Killing The Shadows is a bawdy comic fable set in the Ottoman Empire during the mid-14th century based on two legendary figures in Turkish folkore, the jester Hacivat (Beyazit Ozturk) and the nomad Karagoz (Haluk Bilginer), men who apparently lived and died by their sense of humour.

Clumsy soldiers Şaban and Ramazan fall for a singer-dancer and accidentally become secret policemen tracking down a missing diamond.

The new swimming instructor is met with jealousy by the students and the PE teacher. The students of the boisterous school decide to play this new teacher the infuriating pranks they do to the other new teachers.