In this heartwarming dramedy, we follow a young couple, John and Jenny Grogan, who move to a new city in search of a fresh start. After some time of marriage, they decide that the best way to establish their home is by adopting a dog. This is how Marley, an adorable yet mischievous Labrador Retriever, enters their lives. From the beginning, Marley proves to be anything but a conventional dog: with his boundless energy and tendency to get into trouble, his presence transforms the Grogans' lives in unexpected ways.
As the couple goes through different stages of life, from the joy of becoming parents to the challenges and anxieties of working life, Marley becomes an essential member of the family. Although his behavior can be complete chaos, he also brings laughter and valuable lessons about unconditional love and acceptance. However, as the years go by, the Grogans face the difficult moments in life: joy, sadness, and the inevitable.
Throughout all their adventures, from mischief in the garden to moments of true intimacy, Marley leaves an indelible mark on John and Jenny's lives. This film is a reminder of the joy that animals bring to our lives and the deep love that endures beyond the fleeting.