Latidos(2006)

Latidos is a Spanish thriller about a marriage pushed to its breaking point. When Angela suffers a heart attack, Bruno's delayed response nearly costs her life. She survives, but Bruno becomes convinced she remembers his inaction and plans revenge. Paranoid and guilt-ridden, he grows increasingly unstable, convinced Angela will try to kill him. The couple's home becomes a battleground of suspicion and fear as each anticipates the other's next move. What begins as a moment of negligence spirals into psychological warfare, with neither able to trust the person they once loved. The film explores how a single night of crisis can unravel a relationship, turning intimacy into danger and love into something far more sinister.