The Thursday Murder Club

It committed the cardinal sin of being extremely boring. The characters were pretty bland, and not nearly as charming or charismatic as I would imagine given the description, the initial murder was boring, the continuing mystery had zero tension and was just...boring, and the writing itself also was just doing nothing beyond the bare minimum.

Clearly I am in the minority, but I didn't laugh, I didn't gasp, I didn't even crack a smile at any point - I just kept glancing at the page number, counting down until it was finally over.