Let Me Tell You How It Isn't follows the life of 22-year-old Justin Murphy as he searches for his estranged Lebanese father through London. Raised primarily by his Irish Catholic grandparents in Los Angeles, Justin struggles to identify with a Middle Eastern heritage he knows little about and refuses to accept. As a result, he embarks on a booze-fueled journey of self-discovery-but he isn't alone. His Jain girlfriend-a vociferous critic of his drinking-is along for the ride that leads them across Europe and down into the depths of their own relationship.

Let Me Tell You How It Isn't is the story of a young man's internal and familial struggle between Middle East and Far West in a "secondary security screening" world. It is a story of culture clash, identity, and love, all of which can tear a family apart and bring them back together.