Movies Like My Step-Daughter's Secret Diary

If you liked My Step-Daughter's Secret Diary (2020), a movie directed by Stills by Alan, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Happiness (1998)
★ 7.4/10
The lives of several individuals intertwine as they go about their lives in their own unique ways, engaging in acts which society as a whole might find disturbing in a desperate search for human connection.
2
Below Her Mouth (2017)
★ 6.8/10
An unexpected affair quickly escalates into a heart-stopping reality for two women whose passionate connection changes their lives forever.
3
Goodnight Mommy (2022)
★ 6.3/10
When twin brothers arrive home to find their mother’s demeanor altered and face covered in surgical bandages, they begin to suspect the woman beneath the gauze might not be their mother.
4
Fifty Shades Freed (2018)
★ 6.7/10
Believing they have left behind shadowy figures from their past, newlyweds Christian and Ana fully embrace an inextricable connection and shared life of luxury. But just as she steps into her role as Mrs. Grey and he…
5
Porno (2019)
★ 6/10
When a group of naive teens working at a movie theater in a small Christian town discover a mysterious film hidden in its basement, they unleash an alluring succubus who gives them a sex education…written in blood.
6
Idle Hands (1999)
★ 6.2/10
Anton is a cheerful but exceedingly non-ambitious 17-year-old stoner who lives to stay buzzed, watch TV, and moon over Molly, the beautiful girl who lives next door. However, it turns out that the old cliché about idle…
7
Nymphomaniac: Vol. II (2013)
★ 6.7/10
The continuation of Joe's sexually dictated life delves into the darker aspects of her adult life and what led to her being in Seligman's care.
8
Ginger Snaps (2000)
★ 6.9/10
The story of two outcast sisters, Ginger and Brigitte, in the mindless suburban town of Bailey Downs. On the night of Ginger's first period, she is savagely attacked by a wild creature. Ginger's wounds miraculously…
9
The Company of Wolves (1984)
★ 6.3/10
Young Rosaleen dreams of a village in the dark woods, where Granny tells her cautionary tales in which innocent maidens are tempted by wolves who are hairy on the inside. As Rosaleen grows into womanhood, will the…
10
Family (2018)
★ 6.5/10
Kate Stone is career-focused with a brash attitude that keeps relationships at an arm's length. When her estranged brother calls asking her to baby-sit her tween niece Maddie, Kate reluctantly agrees to help. But…
11
The Overnight (2015)
★ 5.9/10
Alex, Emily, and their son, RJ, are new to Los Angeles. A chance meeting at the park introduces them to the mysterious Kurt, Charlotte, and Max. A family “playdate” becomes increasingly interesting as the night goes on.
12
Sundays at Tiffany's (2010)
★ 6.5/10
Jane, a soon-to-be-married woman, is reunited with her imaginary friend Michael who returns in a human form. Soon, Jane begins doubting her feelings for her fiance as she gets attracted to Michael.
13
The Diary of a Teenage Girl (2015)
★ 6.6/10
Minnie Goetze is a 15-year-old aspiring comic-book artist, coming of age in the haze of the 1970s in San Francisco. Insatiably curious about the world around her, Minnie is a pretty typical teenage girl. Oh, except…
14
You're Not Alone (2020)
★ 5.8/10
After the premature death of her estranged husband, Emma (Winter) regains custody of their young daughter Isla (Jones) and hopes to rebuild their relationship after many years apart. But when an evil entity begins to…
15
Hellraiser (1987)
★ 6.9/10
A hedonistic man finds a mysterious puzzle box that summons a group of gruesome beings known as the Cenobites. These otherworldly entities open the doors to a dominion where pain and pleasure are indivisible.
16
Martha Marcy May Marlene (2011)
★ 6.6/10
After several years of living with a cult, Martha finally escapes and calls her estranged sister, Lucy, for help. Martha finds herself at the quiet Connecticut home Lucy shares with her new husband, Ted, but the…
17
The Little Death (2014)
★ 6.7/10
A comedy film that looks into the loosely connected lives of people with strange sexual fantasies.
18
Daddy's Head (2024)
★ 5.9/10
A boy and his stepmother fear for their safety after an eerie creature resembling the boy's recently deceased father visits them.
19
Vampyres (1974)
★ 6/10
A duo of bisexual female vampires prey on passing motorists, whom they seduce and murder in the English countryside.
20
Bring Her Back (2025)
★ 7.3/10
Following the death of their father, a brother and sister are sent to live with a foster mother, only to learn that she is hiding a terrifying secret.