Teacher Russ and
optometrist Anna share weekly custody of their dog Merv since their break-up. However, Merv is diagnosed with a depression due to their break-up, upon which Russ takes him to a dog hotel in Florida. Believing he is still unhappy, Anna secretly travels after them. At the hotel, Merv's mood improves upon having his humans reunited. The three are invited to a party where Anna gets jealous of Russ's chemistry with the party's host Jocelyn, and Russ gets jealous of Jocelyn's brother flirting with Anna. Russ brings up that he had proposed to Anna before their breakup. When visiting Russ's parents, they slowly start to reconcile. Russ rejects Jocelyn and confesses to Anna that he still loves her, but Anna is reluctant. It is revealed that Anna shut out Russ when she found out that she is infertile. After their trip, Russ leaves her sole custody of Merv, claiming they promised him one home and that they can't go on like this. Russ adopts a new dog from the shelter, who turns out to be depressed as well. At Christmas, they run into each other in the park and confess their love for each other and reconcile. ==Cast==