The movie How Do You Know Chris? follows a group of guests who arrive at Chris Black's apartment to attend a party that he has thrown for them. The guests are a diverse group of individuals, each with their own unique backstory and relationship with Chris. As the night progresses, the guests begin to realize that they all have a connection to Chris, but no one seems to know him very well.
As the guests attempt to break the ice and get to know each other better, the conversations range from intellectual and political to sexual in nature. Many of the interactions are awkward and uncomfortable, but the guests continue to try and find common ground.
As the night wears on, the guests begin to piece together a picture of who Chris Black really is. They learn that he is a pathological liar who has manipulated each of them for his own gain. The guests begin to turn on Chris, confronting him about his deceit.
In the end, the guests leave Chris's apartment, each going their separate ways. They have all been changed by the experience, but they have also grown closer to each other. The movie ends with a sense of hope and healing, as the guests move on from their association with Chris and begin to build new relationships based on trust and honesty.