Deep in the heart of New York's ultra-orthodox Hasidic Jewish community, Menashe, a kind, hapless grocery store clerk, struggles to make ends meet and responsibly parent his young son, Rieven, following his wife Leah's death. Tradition prohibits Menashe from raising his son alone, so Rieven's strict uncle adopts him, leaving Menashe heartbroken.

Meanwhile, though Menashe seems to bungle every challenge in his path, his rabbi grants him one special week with Rieven before Leah's memorial. It's his chance to prove himself a suitable man of faith and fatherhood, and restore respect among his doubters.