Cha Woo Kyung is a child counselor, happily married and pregnant. Her life gets turned around when she hits a child in a car accident. She works with detective, Kang Ji Hun, to catch a serial killer and uncover the mysteries of her past.

Depicts the process of meeting a family who lives a homeless life like camping along a highway rest area, and a couple who accidentally hold hands and the process of the birth of a new family. The story of a family wandering the streets with the hope that they will meet the warmth and affection, compassion, trust, and hope between people who still exist in the cold reality, is revived with the courage and help of someone.