Jo Tae-Sik (Lee Min-Ki) was once an enthusiastic detective, but he now wants a different kind of life. He longs for a peaceful and ordinary existence. Because of this, Jo Tae-Sik applies for a transfer to a police substation in a small country village without many residents. Meanwhile, Jo Tae-Sik takes a case involving the death of Lawmaker Kim Seung-Cheol. He died in a car accident, but Jo Tae-Sik senses that the car accident is not so clear-cut. The lawmaker's son-in-law then goes missing.

Kim Seo-Hui (Lee Yoo-Young) is the youngest daughter of the late lawmaker and her husband is now missing. She married her husband to benefit both of their families, but their relationship hasn't been so good. Kim Seo-Hui becomes a lawmaker to find the truth behind her father's death and save her missing husband.

Jo Tae-Sik and Kim Seo-Hui soon uncover a conspiracy and try to reveal the truth.