Luke and Kate are colleagues working at a Chicago brewery. They often conduct tastings of the product they produce and like to use it after hours. They really like to communicate with each other and spend time together. A guy with a girl is not only good friends, teasing each other, and sometimes even flirt. It would seem that this is a perfect match, but each of them has a soul mate. Kate is dating a guy named Chris, and Luke is going to marry the beautiful Jill. Once, having gathered all together, they go out of town. They drink a lot and have fun. But at one point, some of them realize that continuing to have a relationship with their soul mate does not make any sense ...