Movies like He Knows You're Alone

Predating He Knows You're Alone, Black Christmas is a pivotal slasher with a chilling holiday theme. The story revolves around sorority girls being terrorized by an unseen assailant, paving the way for the genre.

Sleepaway Camp is a cult classic that contains a blend of creative kills and shocking twists. The summer camp setting provides a comparable backdrop to He Knows You're Alone's prenuptial terror.

When a Stranger Calls is renowned for its opening sequence, featuring a babysitter and a chilling phone call, much like the fears exploited in He Knows You're Alone. The film's suspenseful build-up will captivate viewers in search of relentless tension.

The film dives into the slasher tradition with a miner-helmeted villain, similar to the bridal-gown-clad killer in He Knows You're Alone. Its unique setting and holiday tie-in make it another cult favorite.

A group of sorority sisters find themselves being hunted by an unknown assailant after a prank gone wrong, mirroring the young-women-in-peril theme central to He Knows You're Alone. The film blends mystery and slasher elements effectively.

Prom Night offers a revenge-driven slasher experience, where a mysterious killer goes after high school students. With disco-era flair and a feel similar to He Knows You're Alone, it's perfect for enthusiasts of early 80s slashers.

This gruesome slasher has an assailant in WWII gear disrupting a graduation dance, paralleling the wedding-gown fear in He Knows You're Alone. With daring special effects for its time, it's a standout for aficionados of the genre.