Gripping!

So, I think one of my book clubs picked this book, but I didn’t read with. Life. I’m just picking it up and without reading the book summary, dove in, not knowing genre or anything. When certain plot points were introduced (no spoilers), I thought I had figured out how the book would end, but was surprised. I got some things correct, though. Very gripping. Is this classified as a psychological thriller? Great read.