Readers are captivated by Guillaume Musso's 'Quelqu'un d'autre', praising its unpredictable psychological suspense and intricate plot that keeps one guessing until the very end. The narrative, rich with twists and a multi-perspective storytelling approach, has been described as both engaging and thought-provoking. While most found the novel addictive and the finale surprising, a few felt the ending was abrupt and the detailed descriptions occasionally excessive.

👍 Unpredictable twists and deep psychological insights.

👎 Some found the ending abrupt and descriptions lengthy.