In 2001, Japanese American painter Jimmy Mirikitani, over 80 years old, is living in the streets of lower Manhattan. Filmmaker Hattendorf takes an interest, and begins to engage with him to create a documentary of his life. After the World Trade Center destruction on September 11, 2001, the debris- and dust-choked streets are deserted. When Hattendorf looks for Mirikitani, he is still in his usual spot near Washington Square Park. She invites him to stay a while at her apartment nearby to recover from the devastation and unhealthy air in the streets. Gradually we learn who he is, and of his past...with amazing and unexpected results. (The cats of the title are featured in Mirikitani's artwork.)