
“4th Period Murder Mystery”
During fourth period, high schooler Da-jeong finds her classmate Tae-gyu dead in a classroom and Jeong-hun standing in front of him with blood on his clothes. In order to stop Jeong-hun from becoming the prime suspect, Da-jeong must help him find the real murderer, who is still inside the school building, under 40 minutes before period four ends.
A frantic race against time unfolds within the sterile halls of a high school. This mystery-thriller crackles with urgency as friends scramble to uncover a killer before the final bell rings, blending teen drama with a ticking clock.








