The middle-aged man is named Bart, and he has spent most of his life living with his mother, who recently passed away. He is now alone and lost, working a dead-end job as a mechanic and living a monotonous existence.
One day, he receives a phone call from a blind writer named Robert, whose house he has been sent to evict. Despite their initial awkwardness, Bart finds himself drawn to Robert's passion for life and his ability to see the world in a different way.
As Bart spends more time with Robert, he discovers that the writer is constantly solving puzzles as a way to experience the world he can't physically see. Intrigued, Bart begins to help him with the puzzles, and discovers he has a natural talent for solving them.
Through his newfound interest in puzzles and his growing admiration for Robert, Bart realizes how much he has been missing in his life and begins to break out of his shell. He starts to challenge the rules he has always lived by and embrace new opportunities, including a romantic relationship with a fellow puzzle enthusiast.
As Bart's life begins to change, Robert's health takes a turn, and Bart becomes determined to solve one final puzzle that Robert has been unsuccessfully working on for years, in the hopes of bringing him some closure.
Overall, "Puzzle for a Blind Man" is a heartwarming tale about the power of friendship, love, and the unexpected joys that life can offer if we are brave enough to take a chance.