Dylan Gallagher's extremely hot downstairs neighbour seemed to loathe him from the second he moved in, and given that Dylan just caused a flood, fell through the floor, landed directly onto that same neighbor's bed, and made the worst timed "It's Raining Men" joke ever, that seems unlikely to change.Meanwhile, when rains it pours for ER Nurse Derek Chang. The timing of the astronomically expensive deluge couldn't be worse. Paying off his sister's debts emptied Derek's bank account, and the underlying root cause of the collapsed ceiling came from his own unit. Also, the local HOA tyrant has been sniffing around trying to fine him for the illicit, extended visit of his best friend's dog.Dylan has his own reasons to keep the catastrophe quiet. He offers to fix the damage himself and help keep Derek's dog-sitting secret. The two men have to squeeze all their emotional baggage and the 130lb dog into a tiny one-bedroom apartment. Dylan knows he's not Derek's type, so he's intent on getting the repair job done as quickly as possible so he doesn't do anything stupid like acting on his inconvenient attraction. Meanwhile Derek's trying to ignore the fact that the surprisingly funny, tattooed nerd sleeping on the couch is growing on him more and more, despite his determination to hate him.