The 4th Man (1983)
Forget jump scares—*The 4th Man* delivers a slow-burn psychological dread that burrows under your skin. This isn’t just a thriller about a suspicious partner; it’s a masterclass in paranoia, forcing you to question every glance and tender moment. Perfect for fans of *Gone Girl* and Hitchcockian tension, it hooks you with the chilling question: how well can you ever really know someone? The novelist’s unraveling is your own, making this a must-watch for anyone who loves romance wrapped in razor wire.
