Macon is a tattoo artist, fascinated by pleasure and pain, preparing to run the San Diego marathon. During the darkness of a predawn warm-up run, Macon gets taken hostage by a deranged family living in a Tijuana drug-smuggling tunnel. The family is strung out on meth and bath salts and feeding their twin children the blood of their victims. After Macon's whole family gets taken hostage, he comes to know what true pain pain is. A harrowing, twenty-four hour test begins for Macon to rescue his family. Their love will be tested in horrific measures. Family meets family, and mother meets mother, in a world where the saying is confirmed: "Mother is the name for God on the lips of all children."