A young couple struggling to save their marriage after the tragic loss of their baby son moves to idyllic Mammoth Lakes, California. Filmed over thirty-five years, we see their journey through love, commitment, secrets and betrayal.

"Of Things Past" tells the moving story of Michael and Laura Dietrich (Michael Moriarty and Louise Caire Clark, respectively), a young couple struggling to save their marriage after the tragic loss of their two-year-old son. Michael, a physician's assistant, saves the life of a young girl, Kiki, seriously injured in an automobile accident. In saving her life, he begins to forgive himself for the death of his son. 35 years later, an older Laura and Kiki (Tara Reid) meet for the first time, where various long-held secrets are finally disclosed.