Things We Do in the Dark by Jennifer Hillier

When Paris Peralta is arrested in her own bathroom—covered in blood, holding a straight razor, her celebrity husband dead in the bathtub behind her—she knows she'll be charged with murder. But as bad as this looks, it's not what worries her the most. With the unwanted media attention now surrounding her, it's only a matter of time before someone from her long hidden past recognizes her and destroys the new life she's worked so hard to build, along with any chance of a future.