Truly, Darkly, Deeply is a serial killer thriller of a different kind, focusing on Sophie and her mother, Amelia-Rose's relationship with her long-term boyfriend, Matt Melgren. Handsome, charismatic Matty, who is now serving life in prison for the gruesome murder of 9 women and a child during the 1980s.

For the last 20 years, Matty has maintained his innocence, and Sophie has continued to wrestle with the burden of guilt and spiralling doubt. Did Matty really kill all those women? How did they not realise they were living with a monster? Could she have been wrong? Could Matty have really just been the man she knew, the father she never had and always wanted?

The chapters are short and snappy, intensifying my eagerness to get to the truth with each turning page. The reflective style of the narration made it challenging to discern between timelines at first, as there are no past or present chapter titles, but once I was able to differentiate between them, I was so absorbed that I flew through the book in two sittings.

I really enjoyed the inclusion of news articles, broadcasts and blog posts, eliciting a deeper layer of realism as time went on.

I definitely had my doubts about where things were leading, with all the subtle clues falling into place over the last 5 chapters, as it all came together with such climatic finality.

Thank you @hachetteaus for sending me a #gifted copy for review. This was right up my alley and I sense it will play on my mind for quite a while.