A cuckold's worst nightmare unfolds in the first part of "100 fantasias de cornudos." The submissive wife, a willing participant in her husband's cuckolding fetish, engages in a steamy game of phone sex with her dominant lover. The husband, reduced to a mere listener, hears every detail as his wife's fantasies intertwine with reality. The BDSM-laced conversations leave him both frustrated and excited, as he awaits the next chapter in their taboo journey.