The film follows the life of Robert Stroud, a violent inmate who is sentenced to life in solitary confinement after killing a prison guard. During his long years of isolation, he finds an injured bird in the prison yard, which sparks a lifelong passion for birds. Despite the harsh conditions of the penal system, he conducts extensive research, writes books on bird diseases, and even develops cures for avian illnesses. John Frankenheimer.

L'Uomo Di Alcatraz (1962) : Lancaster,Malden,Ritter: Amazon.se

The film portrays Stroud as a quiet, redeemed intellectual. Historical records and prison psychiatrists, however, often described the real Stroud as a dangerous and unrepentant sociopath with an I.Q. of 112.

Burt Lancaster (Robert Stroud), Karl Malden (Warden Harvey Shoemaker), and Thelma Ritter (Elizabeth Stroud).