After his first day at age 15 ended with the girl constructing out with one more man at a party, striving author Lester Grimm has actually treated all his partners with jealousy as well as uncertainty. While dating Ramona Ray, fear obtains the best of him when he discovers that her most recent ex succeeds author Dashiell Frank. Lester starts attending the very same group therapy sessions as Dashiell to learn about Ramona's past with him.