Zoe and Leo are two siblings determined to unravel the mystery behind their parents' death. The only clues they have are two necklaces and an ancient book left for them, along with a single enigmatic phrase: "The blood that binds you is the answer, the tears of angels will reveal the truth." In a journey filled with mysteries and challenges, the siblings will face dangers and pursue the truth. What could this message mean, and what dark truths await them?