After some tragedies, a couple moves back to her childhood home. Robert discovers an old portrait of a man who looks like him, he goes down a rabbit hole to discover the identity of this mysterious doppelganger. 剧情建起传统警匪对峙的框架，正邪双方同样为养家糊口，同样是各为其主，同样带点惺惺相惜，稍后大量添加火势。