The family friend / C.C. MacDonald.

"Keep your friends close but your enemies closer..." -- cover.

Erin lives an idyllic life by the seaside with her baby boy and handsome Australian fiancée. She's upbeat and happy - a natural mum. At least that's what her thousands of followers on Instagram think.In the real world, Erin is struggling with anxiety and finding it difficult to connect with her screaming son. So when a famous agent offers to make her the biggest instamum out there, she's over the moon. And when Amanda, a family friend who's visiting from Australia, says she'll move in and babysit to help make it happen, it seems like the stars have finally aligned for Erin's exciting new career. But when a devastatingly revealing video is posted online by an anonymous troll, Erin's brought crashing back to earth. As everything she's worked for starts to slip away, Erin must find out how far she can trust those closest to her.