The story is about a mysterious 'last order' received by Japanese chef Mei.

Job-seeking student, Soo-hyeon, got a part-time job at a convenient store. The secret between the strange customers and the mysterious store owner creates an unpredictable horror.

Jin-kyeong, an emergency counselor, listens to the stories of suicidal people. When she heard her dead brother's voice on a call, Jin-kyeong is gripped with fear that she can't escape.