A New ‘I Know What You Did Last Summer’ Docuseries Is Coming Soon

With anotherI Know What You Did Last Summerfilm scheduled to land in theaters this summer, just a little over two months away, a new project following real-life crimes is in the works, also from the acclaimed franchise, according to TV Line. The said project, titledThey Know What They Did, is a new docuseries to be narrated by the O.G. star and final girlJennifer Love Hewitt, who is also set to return in the upcoming chapter.They Know What They Didarrives this summer on Investigation Discovery and HBO Max, but a precise date has yet to be announced. And similar tothe movies in theI Know What You Did Last Summercollection, it explores a group of interconnected individuals haunted by a murder from their past. Expect more details about the exciting project as its debut window draws closer.

Speaking of thefourthinstallment of I Know What You Did Last Summer, Hewitt is not the only original star reprising her role; she’s joined byFreddie Prinze Jr.The duo starred asJulie James and Ray Bronsonin the first two chapters, which debuted on July 24, 2025, and August 27, 2025, respectively. Meanwhile, the upcoming film, produced by Columbia Pictures and Original Film, is scheduled to be distributed by Sony Pictures Releasing in the U.S. on June 09, 2025.

What Else Do We Know About the Next ‘I Know What You Did Last Summer’ Film?

Directed by Jennifer Kaytin Robinson, who co-wrote the screenplay withSam Lanskyfrom a story byLeah McKendrickand Robinson,I Know What You Did Last Summeris a direct sequel to 1998’sI Still Know What You Did Last Summer. In addition to Hewitt and Prinze Jr., it starsMadelyn Cline,Chase Sui Wonders,Jonah Hauer-King,Tyriq Withers,Sarah Pidgeon,BillyCampbell,Gabbriette Bechtel,Austin Nichols,Lola Tung, andNicholas Alexander Chavez.

Most recently, Hauer-King spoke with Collider’sSamantha Coleyabout his character, Milo, in the slasher film, whom he compared to hisDoctor Whocharacter, Conrad. The actor described Milo as “a good-natured boy,” adding, “He’s more towards Conrad before the turn.” Speaking further aboutwhat’s in store for Milo inI Know What You Did Last Summer, he shared:

“He’s sweet-natured, and he’s got a good heart, and, obviously, he gets embroiled in all kinds of events where he’s being asked to do things or make decisions that are really difficult. So, there’s a lot of tension for him to come.”

I Know What You Did Last Summerwill find its way to you in theaters this July. Stay glued to Collider for further information about the beloved franchise, and watch the film’s trailer below.