The Confession Room by Lia Middleton

WELCOME TO THE CONFESSION ROOM.
An online forum for admitting your sins.

Some people confess to affairs, others to stealing. Some admit deep, dark wishes. And former police officer Emilia Haines, reading strangers' secrets is the perfect distraction from the past.

But one day, Emilia stumbles on the darkest confession yet:

MURDER.

At first, it seems like a hoax. But when a body is found, then another victim is named, Emilia can't look away.

How are the victims linked? Who is confessing to murder to publicly?

And how do you catch a serial killer who is hiding in plain sight?