Chelsea finally turned sixteen, but that isn't great at all. That means another year in her depression, which apparently won't stop bothering her. Her mother, worried about her, decides that the best thing to do is send her to a residence so she can have a group therapy with other teenagers suffering from mental disorders. What she doesn't know is that she is going to meet amazing people which will help her getting through depression, among them, the person that will change her life. Serendipity means a "fortunate happenstance" or "pleasant surprise". This is a story about a girl that suffers depression, if you are actually suffering from this or you know someone who may be having a bad time, please talk to a professional, it will save your life.