She's got 400,000 fans. One of them could be the killer. Instagram Influencer Sydney Evans carefully curates her enviable public persona. Despite being freshly widowed, she's eager to strike a pose at her best friend's extravagant destination nuptials. But Sydney's feed goes dark when she blacks out on the plane, awakening to discover another guest poisoned to death. With the FBI keen to use Sydney as an insider, she...