At a prestigious cram school, a chilling rumor haunts the halls: if you dare climb to the sealed-off fourth floor at midnight and fill out the enrollment form left on the desk—writing down the wish to pass your exams—no matter how difficult the test or how elite the university, your dream will come true.

Star student Belle and her friends take on the dare, and to their shock, their wishes begin to come true one by one. But with each miracle comes a string of bizarre and gruesome deaths.

Burdened by her mother’s expectation to enter medical school, Belle also writes her name on the list. Soon, terrifying incidents begin to plague her—her sister’s sanity unravels, while her younger brother Bess risks everything to save her, determined to rewrite fate with his own name.

As the truth slowly surfaces, they uncover a horrifying secret buried on the fourth floor—one tied to a dark and twisted tale of a teacher and their students.

When the desperate thirst for academic success relies on supernatural forces—and every victory demands a life in return—will they graduate… or perish? In a system driven to madness, can they survive?