The Lone Ume Tree is a heartwarming drama that delves into the challenges faced by a single mother, Tamako, and her son Tadao as they navigate through life with Tadao's intellectual disability and autism. As Tadao moves into the group home, he struggles to adjust to the new environment and the routine of living independently. The film follows Tamako's journey as she grapples with feelings of guilt and worry about her son's well-being while also trying to find a balance between letting go and staying involved in his life.
As Tadao starts to settle into his new surroundings, he begins forming friendships with other residents at the group home, each of whom has their own unique set of challenges. Through these connections, Tadao learns valuable life skills and gains a sense of independence that empowers him.
Meanwhile, Tamako finds herself facing societal prejudices and misunderstandings about people with disabilities. She becomes an advocate for her son and others like him, working to break down barriers and change perceptions within their community.
The film beautifully portrays the resilience of both Tamako and Tadao as they navigate through life's obstacles together while discovering the true meaning of love, acceptance, and independence.