
The Cleanest Kill on Earth. A young man learns that, just before his birth, his parents were involuntarily part of an atomic‑weapons experiment. The fallout of that secret program has left him with unforeseen, lingering effects, forcing him to confront the hidden legacy of his family’s past.
Does Spontaneous Combustion have end credit scenes?
No!
Spontaneous Combustion does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Spontaneous Combustion, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Melinda Dillon
Nina

Brad Dourif
Sam

William Prince
Lew Orlander

Stacy Edwards
Peggy Bell

Jon Cypher
Dr. Marsh

Brian Bremer
Brian Bell

Cynthia Bain
Lisa Wilcox

George 'Buck' Flower
Preacher on Radio (voice)

Dick Butkus
Lt. General

Dale Dye
General

Dick Warlock
Mr. Fitzpatrick

Ron Blair
Maitre 'D

Dey Young
Rachel

Tegan West
Springer

Nick Gambella
Student in Theater

Judy Prescott
Student Director

Mark Roberts
Dr. Simpson

William Forward
Scientist

Joe Mays
Dr. Persons

Patrick Brock
Paramedic (uncredited)

Sandy Ignon
Doctor in 50's

Michael Keys Hall
Dr. Cagney

Barbara Leary
Amy Whitaker

Frank Whiteman
Young Orlander

Judith Jones
Jennifer

Judy Behr
School Nurse

Betsy Thomas
Nurse at Hospital

Jaime Alba
Walter

Mimi Wearn
Vicky

Patricia Gallagher Layton
Maid

Paul Barresi
Hospital Guard
Discover where to watch Spontaneous Combustion online, including streaming platforms, rental options, and official sources. Compare reviews, ratings, and in-depth movie information across sites like IMDb, TMDb, Wikipedia or Rotten Tomatoes.
Challenge your knowledge of Spontaneous Combustion with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
Which actor portrays the adult version of Sam?
Brad Dourif
Jon Cypher
Brian Bremer
Cynthia Bain
Show hint
Read the complete plot summary of Spontaneous Combustion, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
In 1955, deep underground in a Nevada desert bunker, Brian Bell Brian Bremer and Peggy Bell Stacy Edwards become subjects of a top-secret experiment named Operation Samson. Exposed to a massive nuclear blast as part of a study on immune substances against radiation, they survive the detonation and are later celebrated as national heroes. Their moment of triumph quickly clashes with a troubling discovery: Peggy’s pregnancy raises alarms among high-ranking military and nuclear scientists. The decision around Peggy’s pregnancy is fraught with unease, and the baby—David—receives a battery of tests that pass as “healthy,” save for a slightly elevated temperature. In a grim turn of fate, the same day sees the death of his parents, who succumb to spontaneous human combustion, a fate known as the Fire Syndrome.
As the years pass, the newborn’s arc becomes a chilling transformation. David, grown into the adult known as Sam Brad Dourif, teaches in California, but his life carries a terrible secret. He begins to suffer from spontaneous bursts of fire—pyrokinesis—triggered by emotional distress, a power capable of unleashing flames and even bending electrical currents to his will. The burden of this gift weighs on him as he seeks a way to live with it and protect those around him, especially as the flames threaten to spiral out of control.
Desperate for help, Sam turns to Lisa Cynthia Bain, a woman whose own family bears the scars of the same fate. Together, they confront a deeply rooted conspiracy and the people behind the experiments that have governed Sam’s life since birth. Their uneasy alliance points to a larger truth: the researchers and doctors have used Sam as a tool, and their plans extend beyond merely observing him. Dr. Marsh Jon Cypher, a doctor involved in the scheme, becomes a sinister figure who intends to terminate Sam, revealing a chilling willingness to erase the very person they have kept alive for study.
What follows is a harrowing clash between a man and the system that trained him to distract from his own humanity. Sam fights back, wielding his fiery powers to strike down those who seek to eliminate him, all while watching as his abilities push him toward dangerous extremes. The threats reach out to innocent bystanders as his grip on control loosens, painting a grim portrait of power without mercy. Yet even amid this turmoil, Sam remains driven by a singular need: to protect Lisa from the fate that hunted her own family and to break free from the lifetime of manipulation.
In the end, Sam’s struggle culminates in a final, redemptive act. With his last reserves of strength, he saves Lisa and frees her from the Kroft-like shadow that has haunted them both. The act comes at a personal cost, as Sam disintegrates in the process, leaving behind a stark reminder of the price of power and the limits of human endurance. What remains is a somber meditation on memory, control, and the ethics of scientific experimentation gone awry, told through a quiet, unflinching lens that refuses to glamorize a tragedy born from ambition and secrecy.
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