After a loving father (Sam Worthington) endures a family tragedy that rocks him to his core, he receives a mysterious invitation to "The Shack," a decrepit shelter where an unimaginable horror once took place. But, much to his surprise, his visit prompts a divine intervention from a series of strangers (Octavia Spencer, Graham Greene, Avraham Aviv Alush, and Sumire Matsubara), and the group soon lead him on a theological inquiry in the hope of getting him unstuck from his grief by reminding him of the all-encompassing love of God. Based on the best-selling allegorical novel by William Paul Young.