Dirección: Nicholas Ray
Debido a una rara enfermedad, Ed Avery debe tomar una droga en experimentación que le provoca alteraciones mentales que repercutirán en su trabajo como profesor y en sus relaciones familiares.
James Mason
Ed Avery
Barbara Rush
Lou Avery
Walter Matthau
Wally Gibbs
Robert F. Simon
Dr. Norton
Christopher Olsen
Richie Avery
Roland Winters
Dr. Ruric
Rusty Lane
Bob LaPorte
Rachel Stephens
Nurse
Kipp Hamilton
Pat Wade
Betty Caulfield
Mrs. LaPorte (uncredited)
Virginia Carroll
Mrs. Jones (uncredited)
Renny McEvoy
Mr. Jones (uncredited)
Billy Jones
Mr. Byron (uncredited)
Dee Aaker
Joe (uncredited)
Jerry Mathers
Freddie (uncredited)
Portland Mason
Nancy (uncredited)
Natalie Masters
Mrs. Tyndall (uncredited)
Richard Collier
Milkman (uncredited)
Lewis Charles
Mr. McLennan (uncredited)
Gus Schilling
Druggist (uncredited)
