Netflix's much-loved romantic comedy To All The Boys I've Loved Before gets a makeover in a horror trailer that casts Lara Jean (Lana Condor) as a psycho killer. Based on the novel by Jenny Han and directed by Susan Johnson, To All The Boys I've Loved Before is about a teen girl who loves reading romance novels, but would never actually dare to ask a boy out. Instead, every time she falls in love with a boy she writes him a letter and then hides it away in her closet.

Things go sideways when Lara Jean's letters get sent out - including a letter to her current crush, Josh (Israel Broussard)... who just happens to be her sister's ex-boyfriend. In a panicked move, Lara Jean ends up agreeing to a fake relationship with another letter recipient, Peter (Noah Centineo), to make his ex-girlfriend jealous and convince Josh that she's over him.

Related: Will To All The Boys I've Loved Before Get A Sequel?

Thanks to strong word of mouth and repeat viewing, To All The Boys I've Loved Before became one of Netflix's most-watched original films. The cast and filmmakers are eager to make a sequel, but while we wait for official news on that front, Netflix has been having some Halloween fun with the first movie. This horror trailer for To All The Boys I've Loved Before was shared to the official Netflix YouTube page on October 31, and with a little sinister music and intertitles, this cutesy rom-com suddenly seems to be concealing a darker story.

Yikes! It looks like in this alternate version of To All The Boys I've Loved Before, Lara Jean's letters are preludes to murder, and her encounter with Josh in the hot tub has a far worse outcome than compromising photos being spread around the school. Maybe the humiliation of her crushes finding out about the letters tipped her over the edge... or maybe she just had to silence them before they told anyone. Suddenly, pretending to be in a relationship with a guy to avoid having a serious talk with your crush doesn't sound so crazy.

Hopefully Netflix will give the go-ahead for a sequel showing what happens next in Lara Jean's life, and a few Halloweens from now we'll be able to enjoy a trailer for To All The Boys I've Killed Before 2. Or maybe I Know About The Boys You Killed Last Summer.

More: To All The Boys I've Loved Before Review