Four years ago, Adaira Mengle went missing. Today, on Adaira's 18th birthday, her mom, Mara, got a phone call from an unknown number. Her heart froze when she heard the only two words that were said: "Hi Mommy." Two days later, the police find Adaira's dead body. But the calls continue. Who killed her? Who is the secret caller? ⚠️tw: death, mentions suicide⚠️