At his school in Madrid, ex-bullfighter Diego Montes teaches his students the Corridor - 'the art of the kill'. Trainee bullfighter Angelo, sexually repressed and mother fixated, is taunted about his suspected homosexuality by Diego. To prove his masculinity Angel attempts to assault Diego's girlfriend. Failing in his attempt and consumed by guilt he confesses to murders he did not commit - the victims are killed with bullfighting instruments at the moment of sexual climax. Angel is defended by lawyer Maria Cardenal, the real killer, who is obsessed with Diego and uses Angel to draw the maestro Matador into one last confrontation.