Someone Else Has My Key. The Bellweather Residences, #2

The most secure lock in the world protects nothing if the wrong person is already inside. Taryn Moss is a meticulous art restorer who lives an ordered, solitary life in a highly secure, luxury high-rise in Chicago. Her sanctuary is her fortress, until she begins to notice impossible, subtle changes in her locked home: a canvas rotated exactly fifteen degrees, a damp coffee mug left in the drying rack, and security footage of a woman wearing her coat wandering the lobby while Taryn sleeps.
Even after installing a high-security deadbolt, the terrifying intrusions continue. Driven to uncover the truth, Taryn tears back the layers of her historic building. She discovers a century-old service corridor concealed directly behind her bedroom closet. This secret passage connects to the adjacent, seemingly empty apartment-a sterile space used as a climate-controlled vault for a high-stakes art forgery and theft ring.
But the ultimate betrayal hits much closer to home. The criminal operation is being orchestrated from within her own inner circle, run by her trusted studio assistant. Worse, the entire empire is built upon the dark, hidden legacy of Taryn's own late father, Vincent Moss. Trapped between exposing a dangerous criminal network and protecting her family's dark past, Taryn must use her precise skills as a restorer to set a trap and uncover the devastating truth that has been hiding in her walls.