"Turtles All the Way Down" follows the story of sixteen-year-old Aza Holmes, who struggles with obsessive-compulsive disorder. The film opens with Aza and her best friend, Daisy Ramirez, learning about the disappearance of a local billionaire, Russell Pickett. When his disappearance is announced on the news, Daisy is quick to suggest they try and find him to claim the reward money.
Aza is hesitant at first, as she is consumed by her own thoughts and fears, but eventually agrees to help Daisy with the search. As they delve deeper into the mystery, Aza reconnects with Russell's son, Davis, whom she used to be friends with when they were younger. The two begin to bond over their shared experiences of loss and loneliness, and Aza finds herself falling for Davis despite her struggles with her mental health.
Meanwhile, Aza's OCD becomes increasingly overwhelming, causing her to spiral into a pattern of obsessive thoughts and behaviors. She struggles to maintain her relationships with those around her, including Daisy and her mother. As the search for Russell Pickett intensifies, Aza is forced to confront her own inner demons and face the reality of her mental illness.
In the end, Aza and Daisy uncover the truth about Russell's disappearance, leading to a bittersweet revelation that ultimately helps Aza come to terms with her OCD. She learns to accept herself and finds solace in the support of her loved ones, including Davis, who stands by her side through it all.
"Turtles All the Way Down" is a poignant and heartfelt exploration of mental illness, friendship, and the power of self-acceptance. It is a reminder that even in the darkest moments, there is always hope and light to be found.