Shows Like I Know What You Did Last Summer
If you loved I Know What You Did Last Summer's Mystery and Drama storytelling, these series deliver a similar experience — chosen for tone, narrative quality, and viewer satisfaction. Each includes where to stream it now.
★ Top Picks

The Better Sister
Chloe moves in New York's most elite circles with her lawyer husband Adam and teenage son Ethan by her side while her estranged sister Nicky tries to make ends meet and stay clean. When Adam is brutally murdered, the investigation sends shockwaves through the family and exposes long-buried secrets.

Agatha Christie's Marple
The adventures of Miss Jane Marple, an elderly spinster living in the quiet little village of St Mary Mead. During her many visits to friends and relatives in other villages, Miss Marple often stumbles upon mysterious murders which she helps solve. Although the police are sometimes reluctant to accept Miss Marple's help, her reputation and unparalleled powers of observation eventually win them over.

Scream: The TV Series
What starts as a YouTube video going viral, soon leads to problems for the teenagers of Lakewood and serves as the catalyst for a murder that opens up a window to the town's troubled past. Everyone has secrets. Everyone tells lies. Everyone is fair game.

56 Days
When an unidentified body is found in a luxury apartment linked to Oliver Kennedy and his girlfriend Ciara Wyse, Detectives Lee Reardon and Karl Connolly reconstruct the couple's deadly romance across the past 56 days.

The Purge
Set in a dystopian America ruled by a totalitarian political party, the series follows several seemingly unrelated characters living in a small city. Tying them all together is a mysterious savior who’s impeccably equipped for everything the night throws at them. As the clock winds down with their fates hanging in the balance, each character is forced to reckon with their pasts as they discover how far they will go to survive the night.

Dead Ringers
Elliot and Beverly Mantle are twins who share everything: drugs, lovers, and an unapologetic desire to do whatever it takes — including pushing the boundaries on medical ethics — in an effort to challenge antiquated practices and bring women’s healthcare to the forefront.

Pretty Little Liars: Original Sin
Twenty years ago, a series of tragic events almost ripped the blue-collar town of Millwood apart. Now, in the present day, a group of disparate teen girls finds themselves tormented by an unknown Assailant and made to pay for the secret sin their parents committed two decades ago, as well as their own.

Why Didn't They Ask Evans?
A dying man's enigmatic last words send vicar's son, Bobby Jones, and his socialite friend, Lady Frankie Derwent, on a crime-solving adventure.
More Shows Like I Know What You Did Last Summer

Sherlock & Daughter
Sherlock Holmes faces a sinister case risking friends' lives. American Amelia joins, seeking her father after her mother's murder. Despite differences, they solve a conspiracy and her mother's case.

Ringer
Six months after deciding to pull herself together and get sober, Bridget witnesses a murder. Realizing her life is in danger and not trusting the FBI to protect her, she runs to her wealthy twin sister, Siobhan, in New York. Things start out well—with the two patching up a fractured relationship—when Siobhan suddenly goes missing. Bridget assumes her sister's identity, but soon learns that Siobhan's life is not as perfect as it looks and she is no safer than she was before.

Fool Me Once
When ex-soldier Maya sees her murdered husband on a secret nanny cam, she uncovers a deadly conspiracy that stretches deep into the past.

The Survivors
Fifteen years ago, the loss of three young people tore this sleepy seaside town apart. Now, the mysterious death of a young woman dredges up the past.

Pretty Little Liars
Based on the Pretty Little Liars series of young adult novels by Sara Shepard, the series follows the lives of four girls — Spencer, Hanna, Aria, and Emily — whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone using the name "A" who threatens to expose their secrets — including long-hidden ones they thought only Alison knew.

Shardlake
The year is 1536. Lawyer Matthew Shardlake finds his life turned upside down when Thomas Cromwell sends him to investigate a suspicious death at the remote monastery of Scarnsea. Deception, deceit, and corruption are rife as it soon becomes clear that the murder is not the first. Shardlake is drawn into a web of lies that threatens not only his integrity but his life.

Missing You
When Detective Kat Donovan matches on a dating app with the fiancé who disappeared years before, she learns that some secrets are best left in the past.

Cross
Alex Cross is a brilliant but flawed homicide detective and full of contradictions. A doting father and family man, Cross is single-minded to the point of obsession when he hunts killers. He is desperate for love, but his wife’s murder has left him too damaged to receive it.

The Girlfriend
Laura has it all: a glittering career, a loving husband, and her precious son, Daniel. But her perfect life unravels when Daniel brings home Cherry, a girlfriend who changes everything. After a tense introduction, Laura becomes convinced Cherry is hiding something. Is she a manipulative social climber, or is Laura just paranoid? The truth is a matter of perspective.

The Afterparty
Nothing is as it seems in this hilarious murder mystery where each suspect's story is told through a different film genre.

CSI: Vegas
Facing an existential threat that could bring down the Crime Lab, a brilliant team of forensic investigators must welcome back old friends and deploy new techniques to preserve and serve justice in Sin City.

Ordeal by Innocence
The black sheep of the Argyll family, Jack Argyll, was accused of murdering their matriarch a year ago, but now a man shows up on their doorstep claiming Jack’s innocence. The family must come to terms with this news and the fact that the real killer might still be among them.
Why These Shows Are Similar
These recommendations share core qualities with I Know What You Did Last Summer (2021): Mystery and Drama themes, similar pacing, and comparable production quality. NoBadPicks uses TMDB collaborative filtering, genre matching, and AI analysis to surface series most likely to resonate with fans of I Know What You Did Last Summer.
See full details for I Know What You Did Last Summer (2021)