该剧由洪硕九、洪恩美导演，金敏珠编剧，Flying Entertainment、Asendio制作，讲述了坚信完美生活的女人在人生被彻底夺走后发生的人生夺回复仇剧。
A musician recording an album in the woods finds eerie cassette tapes being left for him. On them, a woman researching an urban legend was being terrorized by a man and his vicious dog. Now, the same thing is happening to the musician.
该剧讲述了女主因乘坐一座电梯后， 被困在 4 月 28 日里 。为了离开电梯停止循环，女主和被困的四个男生一起展开了扑朔迷离的寻找真相、 求生拯救的悬疑故事。
