In the sweltering summer of a Florida city, a lawyer named Ned Racine finds himself trapped in a monotonous and emotionless routine. One day, his life takes an unexpected turn when he meets the seductive and enigmatic Matty Walker, the wife of a local millionaire. Unable to resist her magnetism, Ned quickly becomes hypnotized by her beauty and free spirit. Soon, the chemistry between them evolves into a dangerous adventure that transcends the physical.
They both become immersed in a passionate romance fraught with complicity, but Matty harbors dark and dangerous ambitions involving her husband. As their relationship deepens, Ned finds himself ensnared in a web of deceit and manipulation, leading him to a point of no return. Matty suggests a chilling plan: to eliminate her husband so they can start a new life together. Matty's seductive charm blinds Ned, who, willing to do anything for love, gets swept away in a deadly game.
As they attempt to carry out their sinister conspiracy, tension and distrust grow, revealing the complexity of their true intentions. In the end, the suffocating heat of summer becomes a symbol of the betrayal and desire consuming Ned, leading him to an unexpected and heartbreaking fate.