Hwang Joo Eun and Ko Tae Hoon lost their six-year-old daughter Hee Soo in a car accident. Now they live their days unable to shake their grief. Tae Hoon becomes unable to watch Joo Eun breaking down. At the suggestion of his friend and program developer Jun Beom, Tae Hoon recreates their daughter in a Virtual Reality format. The family seemed to regain some happiness with the VF Hee Soo. Joo Eun's unhealthy obsession leads to catastrophe.