Jay is gone

Anyone who has read Gone Girl will love this crime novel. A young woman is beaten to death in the city park. Mia, a veterinarian, lives nearby. One day, her best friend from childhood days, the charming and successful Jay, disappears without a trace. She left a letter to her husband behind, asking him not to pursue her. Mia immediately suspects foul play when she realizes that Jay resembles the dead woman from the park. Where is Jay? Nobody seems to care, except for Mia. Their friends are a...