In Southern California’s Topanga Canyon, two couples live in close proximity and yet are worlds apart. High atop a hill overlooking the canyon, nature writer Delaney Mossbacher and his wife, real estate agent Kyra Menaker-Mossbacher, reside in an exclusive, secluded housing development with their son, Jordan. Camped out in a ravine at the bottom of the canyon are Cándido and América Rincón, a Mexican couple who have crossed the border illegally. On the edge of starvation, they search desperately for work in the hope of moving into an apartment before their baby is born. A chance, violent encounter brings together Delaney and Cándido, instigating a chain of events that eventually culminates in a harrowing confrontation.