Meet John and Jennifer Grogan (Owen Wilson and Jennifer Aniston). They are a perfect couple. They are young, they both have jobs and they have just moved to Florida. When the talk about the future filled with kids starts, John decides to buy her a cute retriever puppy, which they called Marley. At first it was really cute that Marley had a high level of energy, because it always wanted to do something and play. But as he grows older and gets bigger, he doesn't actually lose on the energy, as they hoped he would. Instead, he grew into pretty self minded dog which does whatever he wants and when he wants. So, throughout the movie we get to see both John and Jenny getting to deal with everything Marley does, as well as starting the family of their own. From the really amazing situations being even better to all those which were totally ruined by Marley himself. And it sure is really hilarious, exactly because it is so everyday and people have to deal with the same stuff each day, over and over again. But, there is also lots of love that can be seen in this movie. They gave Marley their hearts and he gave them his, was by their side from the moment they brought him home till his very end.