11 former schoolmates enjoy a grand celebration and are surprised by the unexpected visit of Monica who was not invited due to her unpleasant behavior with the group in the past. Her visit creates discontent and anger among all of the attendees, especially of Sandra, the host. Monica gets murdered in the gardens of the house creating an investigation. The 11 people will become suspects and questioned and each one of them begins to give their own and different version as to what happened creating twists and turns among the investigation, not to divert authorities of the murderer, but rather, to protect their dark pasts.