Soft Hearts by Eric Lodin is the first instalment in The Rett Swinson Mystery Series.
Girl A is the story of seven Gracie siblings: Lex (Alexandra), Ethan, Evie, Delilah, Gabriel, Noah, and Daniel. The book is a character-driven psychological drama about the survivors of an abusive “House of Horrors.”
"Cry For Help" is the second book in the series 'Detective Madison Harper Series'. However, the book can be read as a standalone.
The book reminds me of a Netflix show called "Sacred Games". If you have watched it and enjoyed it, then this book is for you.