There are families we were born into... ...and families we found. When Serenity had her DNA tested, she joked that it would surely uncover some dark scandal in her ancestors. However, she definitely did not expect to find two half-sisters, whose existence she had no idea. In a single moment, her ideas about the family in which she lived in love and harmony until now collapse. A lot of questions run through her head, and she promises answers from meeting her newfound sisters. The perfect place to meet three young women with the same DNA seems to be the family cabin at Lake Tahoe, where Serenity loves to go. It is there that the trio decides to uncover the secret that has shaken their lives so far. All of them are in a turning point in their lives. Reagan tries to deal with her romance at a New York advertising agency, where she is building a career, while Lorelei faces the breakup of her marriage. By the end of the summer, they will have to deal with the fact that what they believed to be the truth has suddenly turned out to be one big lie.