In the Georgian émigré community in Tel Aviv, Israel, 31-year-old Zaza (Lior Ashkenazi) is viewed as a disgrace by his parents and relatives. Although he's a smart fellow studying for his Ph.D. in philosophy at the university, he's still not married. Nonetheless, his patient father Yasha (Moni Moshonov) and mother Lily (Lili Kosashvili) have provided him with their credit card.

In the opening scenes, the clan gathers to visit a 17-year old Jewish virgin whose parents are willing to part with her in an arranged marriage to the right person. Zaza is very uncomfortable since he has already met and rejected over 100 women. This prospect turns out to be a very attractive and aggressive teenager who wants to be a fashion designer. However, she's looking for a rich man. Zaza realizes another day has been wasted on the effort to get him married off.

In this breezy drama about sexual politics and traditions, writer and director Dover Koshashvila sides with Zaza who is secretly seeing a 34-year-old Moroccan woman, Judith (Ronit Elkabetz). She is a divorcee living with her six-year-old daughter Madona (Sapir Kugman). The two adults can't get enough of each other sexually; they are not even able to hide their torrid affair from her child.

When Zaza's parents and relatives discover his secret relationship, they show up at Judith's apartment as a large, angry mob. They try to shame her for dating a younger man and call her a whore. They humiliate him as well. The scene compellingly reveals the lengths some people will go to preserve tradition, even if it means trampling over the soul of a flesh-and-blood relative.

One of the many odd bits in Late Marriage is the way superstition crops up. One of Lily's friends convinces her to drop a love charm underneath the bed of the teenager in order to turn her heart toward Zaza. Then late in the drama, Judith fashions a bizarre ritual — burning a handkerchief with her lover's semen on it as a way to keep his heart burning only for her. In the end, familial power carries the day but not without some consequences for Zaza's emotional repertoire.