Reclusive small town locksmith A.J. Manglehorn (Academy Award® winner Al Pacino) has never quite recovered from losing the love of his life, Clara. Fixated on her memory, he feels closer to his beloved cat than the people around him and prefers to find comfort in his work and daily routine. Still, he forges on with his tenuous human connections, maintaining intermittent contact with his son (Chris Messina), taking misplaced pride in a former protégé gone astray (filmmaker Harmony Korine), and establishing a cautious friendship with a kindhearted woman from the local bank (Academy Award® winner Holly Hunter). As this solitary man approaches the possibility of new love, he finds himself at a crossroads between staying mired in the past and embracing the present.