Lois Duncan
Writer · Died June 15, 2016, aged 82 · Philadelphia, Pennsylvania, USA
Lois Duncan (1934–2016) was an American novelist, poet and journalist, best known for her novels of suspense for teenagers, such as "I Know What You Did Last Summer."
Biography from TMDB.
- April 28, 1934
- June 15, 2016 (aged 82)
- Philadelphia, Pennsylvania, USA
- Writer
- 11 on MovieCove · 13 credits in all
Known for
What are Lois Duncan's films like?
Across their 11 MovieCove titles with a thematic analysis, their films lean Morality and Survival.
Genres
Their MovieCove films by primary genre. The badge is the typical Midcredits score of the genre's films, the median percentile; an up arrow marks a genre at or above their average across these genres.
Themes
What they feel like to watch
Ironic 1 · Wry 2 · Earnest 7
A split, not a type: Light 3 · Serious 2 · Dark 5
Grounded 5 · Stylized 5 · Heightened 0
Gentle 2 · Charged 4 · Intense 4
Steady 3 · Shifting 7 · Whiplash 0
Straight-faced 7 · Some laughs 2 · Funny 1
Slow burn 1 · Even-paced 9 · Relentless 0
A split, not a type: Casual 5 · Engaged 4 · Full focus 1
Easy watch 4 · Affecting 4 · Heavy 2
Resolved 6 · Open-ended 3 · Ambiguous 1
Moods and endings
- Happy2
- Bittersweet5
- Ambiguous4
AI-generated from each title's plot synopsis and cast list, with extra plot summaries, reviews and Parents Guide notes for titles the model may not know, and the model's own knowledge of the ones it recognizes. Only analyzed titles count, so this covers part of the filmography; the feel axes count films only for now.
Where can I watch Lois Duncan's films?
As of October 24, 2026, 8 of their 11 MovieCove titles stream on a subscription or free service, most on Tubi (4).
Subscription and free streaming for Lois Duncan's titles on MovieCove; rent and buy are not counted. Titles are listed by Midcredits score, highest first, at most 12 per service; a dashed chip is a producer credit or a minor one, such as a thanks. A service opens the browse page, which counts movies only, so its number can differ.
Filmography
13 credits, 11 with a MovieCove page; 1 appearance as themselves is hidden until asked for.
Midcredits score: 13th percentile of all films
Midcredits score: 8th percentile of all shows
Down a Dark Hall(2018)
Midcredits score: 20th percentile of all films
Stranger with My Face(2009)
Midcredits score: 34th percentile of all films
Hotel for Dogs(2009)
Midcredits score: 35th percentile of all films
Midcredits score: 1st percentile of all films
Held for Ransom (not in the MovieCove catalog yet)(2000)
Don't Look Behind You (not in the MovieCove catalog yet)(1999)
Midcredits score: 11th percentile of all films
Midcredits score: 29th percentile of all films
Midcredits score: 38th percentile of all films
Killing Mr. Griffin(1997)
Midcredits score: 32nd percentile of all films
Summer of Fear(1978)
Midcredits score: 23rd percentile of all films
Career shape
A full career of 13 titles from 1979 to 2025.
Biggest box office
I Know What You Did Last Summer (1997)
Highest rated
I Know What You Did Last Summer (1997)
Most popular right now
Hotel for Dogs (2009)
Counts from TMDB across their full career, self appearances out; a title counts in every role they held on it. The ring is the typical Midcredits score (the median percentile) of the role's titles that are on MovieCove, shown from 5 scored.
How do Lois Duncan's films land?
Their typical MovieCove film has a Midcredits score in the 26th percentile, the median of all 10; across their 10 films with reception data, the typical film sits in the 27th percentile for acclaim.
- 25th to 49th5
- Below 25th6
Shape of the crowd
8 of their 11 titles are Mixed.
- Universally Panned1
- Cult Classic1
- Broadly Agreed1
- Mixed8
Reviewers score the dialogue 34/100 and the plot and story 35/100 in their films, across 10 reviewed titles. The element that speaks to their work as a writer.
Percentiles are each film's standing among all films on MovieCove; the typical film is the median, so one outlier cannot drag it. Percentiles and reviewer scores count the films IMDb credits them on, for now; the Midcredits score bands, the shape of the crowd and the two cards count their MovieCove titles, shows included (a show ranked among shows), appearances as themselves left out. A descriptor is the shape of a title's IMDb rating distribution against the catalog; "most divisive" needs a spread wider than half of all titles, and a card names only a principal credit: a craft role, and on a show a crew role or a run of episodes, never a courtesy credit or a one-off guest spot.
Is Lois Duncan's work okay for kids?
Across up to 7 MovieCove titles with content scores, violence & gore, profanity and frightening / intense run heavier than most films.
Severity 0–100 from the Content Guide. Categories with under 10 votes on a title are not counted. The band's colour is the severity of their median, named beside it.
Who does Lois Duncan work with?
People who share at least 2 of Lois Duncan's MovieCove titles, grouped by what they did on them; Neal H. Moritz shares the most, 5.
Actors
- Freddie Prinze Jr.Shared titles: I Know What You Did Last Summer (2025), I Still Know What You Did Last Summer (1998), I Know What You Did Last Summer (1997)See all 3 shared titles with Freddie Prinze Jr.
- Jennifer Love HewittShared titles: I Know What You Did Last Summer (2025), I Still Know What You Did Last Summer (1998), I Know What You Did Last Summer (1997)See all 3 shared titles with Jennifer Love Hewitt
- Brandy NorwoodShared titles: I Know What You Did Last Summer (2025), I Still Know What You Did Last Summer (1998)See all 2 shared titles with Brandy Norwood
- Sarah Michelle GellarShared titles: I Know What You Did Last Summer (2025), I Know What You Did Last Summer (1997)See all 2 shared titles with Sarah Michelle Gellar
Composers
- John DebneyShared titles: Hotel for Dogs (2009), I Know What You Did Last Summer (1997)See all 2 shared titles with John Debney
Producers
- Neal H. MoritzShared titles: I Know What You Did Last Summer (2025), I Know What You Did Last Summer (2021), I'll Always Know What You Did Last Summer (2006), I Still Know What You Did Last Summer (1998), I Know What You Did Last Summer (1997)See all 5 shared titles with Neal H. Moritz
- Erik FeigShared titles: I Know What You Did Last Summer (2021), I'll Always Know What You Did Last Summer (2006), I Still Know What You Did Last Summer (1998), I Know What You Did Last Summer (1997)See all 4 shared titles with Erik Feig
- Bonnie RaskinShared titles: I've Been Waiting for You (1998), Killing Mr. Griffin (1997)See all 2 shared titles with Bonnie Raskin
- Stokely ChaffinShared titles: I Still Know What You Did Last Summer (1998), I Know What You Did Last Summer (1997)See all 2 shared titles with Stokely Chaffin
