Few things create tension quite like the presence of an unwanted guest. In the real world, it might just be an awkward evening – but in cinema, it often spirals into something far darker. These films turn the simple act of arrival into a source of dread, suspicion, and sometimes sheer terror.
In this list, we’ve gathered 20 deeply unsettling movies where an unexpected visitor disrupts the fragile balance of safety and control. Whether it’s a home invasion, a stranger who won’t leave, or a guest with motives hidden behind a polite smile, each story captures the unease of having your personal space invaded. Prepare for slow-burn tension, sharp psychological twists, and moments that will make you glance nervously at your own front door.