Las Fieras (1969)

Continuação do filme premiado Malevolence, Sofrimento conta o relato de Martin Bristol, um garoto de seis anos seqüestrado em seu balanço no quintal e forçado a testemunhar os crimes brutais de um louco perturbado.

Os internos do asilo que foram para um outro planeta aproveitam uma oportunidade e pegam uma "carona", para poderem rever seus familiares e amigos. Mas quando chegam na Terra começam a questionar se devem continuar no planeta ou retornar a Antares, enquanto seus amigos alienígenas se preocupam em resgatar alguns de seus antepassados.

The film follows Jack Hopkins (played by Michael Craig), an aircraft designer with a passion for traction engines. His boss (played by Cecil Parker) is eager to sell a new supersonic jet plane that Jack has designed to American millionaire Paul Fisher (Alan Hale, Jr.). The first encounter between Fisher and Jack goes badly, and tensions only heighten after Fisher's daughter Kathy (Anne Helm) damages Jack's prize traction engine "The Iron Maiden", rendering it impossible to drive solo. Jack is desperate to enter the annual Woburn Abbey steam rally with the machine, but his fireman is injured and unable to participate. When all seems lost the millionaire himself is won over by Jack's plight and joins him in driving the engine; the two soon become firm friends.

Despite vocal objections from Warden Blakely, prison psychologist Diana Purlow journeys deep inside the mind of serial killer Jesse Mowat in a desperate attempt to reveal the source of his psychotic tendencies.