Seven Friends, One Secret. Hye-jin's reunion with her childhood friends should have been a joyous occasion. However, when a hurtful secret is revealed, its end result sends the shy Eun-ju...

Seven Friends, One Secret. Hye-jin's reunion with her childhood friends should have been a joyous occasion. However, when a hurtful secret is revealed, its end result sends the shy Eun-ju plummeting to her death from a 30-story building. Then, the horror begins. One by one Hye-jin's friends are being hunted down and murdered by the malicious hands of someone they are all bound to... Can they stop the horror before time runs out?