What Happens at Night is a chilling horror-mystery that masterfully blends psychological tension with atmospheric dread. The film follows an American couple whose journey to a remote, snowbound European town for a seemingly straightforward adoption descends into a surreal nightmare. Upon arriving at their isolated hotel, they encounter a bizarre cast of characters including a haunting chanteuse, an enigmatic businessman, and a mysterious faith healer, each adding layers of unease to their already fragile state.

Director Peter Sobczynski crafts an exceptionally tense atmosphere where the freezing European landscape becomes a character itself, mirroring the couple's growing isolation and psychological unraveling. The performances are uniformly compelling, with the leads portraying the gradual erosion of their relationship and sanity with heartbreaking authenticity. As reality begins to distort within the hotel's labyrinthine corridors, viewers are taken on a disorienting journey that questions the nature of parenthood, commitment, and identity.

What makes What Happens at Night particularly worth watching is its sophisticated approach to horror. Rather than relying on jump scares, it builds profound unease through masterful pacing, unsettling imagery, and philosophical undertones. The film's mystery elements keep viewers engaged as they piece together the hotel's secrets alongside the protagonists. For fans of atmospheric thrillers that linger in the mind long after viewing, this is an essential watch that demonstrates how horror can explore profound human anxieties with intelligence and artistry.