Married couple Jeff and Audrey have just learned their next door neighbour, Jennifer, has become engaged to her boyfriend, Adam. But when Jeff tries to give Adam advice, he develops doubt about the impending engagement. Meanwhile, Jennifer fixes up Adam's best friend, Russell, because she believes the right woman could change his habit of being a serial dater. Meanwhile, Jeff inadvertently starts a fight between Audrey and himself about an old bicycle.
When it's time to plan a party for Jeff's birthday, everyone gets involved. But Audrey is spending a little too much time on planning the party, which makes Jeff unhappy. Although Jeff won't reveal what he usually gets in the annual birthday deal, Adam brings up the subject with Jennifer and is then worried when Jennifer not only agrees to give him a birthday deal, but announces she wants to get one in return. Meanwhile, Russell is obsessed with trying to figure out what Jeff's birthday present really is.
Jeff puts Audrey in a bad mood after he fails to respond to the news of her big promotion at work because he is watching his basketball game. Jeff tries to make it up by inviting her to floor seats at a Knicks game. But she can't decide what to wear, which it makes Jeff wonder if she cares more about how she looks than about him. Now that Jennifer and Adam are living together, they have an argument over money.
Jeff's snoring has gotten out of hands. Audrey, who isn't able to sleep anymore, decides that she and Jeff should sleep in separate bedrooms. While this could seems like a bad situation for some, other like Jeff see the good side of it. Jeff takes advantage of his new found freedom by staying up too late and living like a college student.
With Audrey's sister, Barbara, having problems in her marriage, the only thing she doesn't need is a man who would trick her to try and get her to sleep with him. But, sadly, in Audrey's life there is a man just like this. During this episode, Russell will try everything to get a one night stand with Audrey's sister.
Oliver Hudson (Adam) and Bianca Kajlich (Jennifer) give you an exclusive studio tour of the set in this Behind the Scenes clip from Rules of Engagement.
Jeff has found a way to talk to his wife without having to physically talking to his wife through an app on his phone by telling her what ever he wants by having his voicemail go straight to her voicemail. Adam has a salesman come to his defence after his friends pick on him for some bad choice in picking his clothes.