Crazy Poison(1989)

Original title: Loco veneno

Verónica (Maru Valdivielso) is a young executive who works in a dairy company. One day before going on holiday to the carnivals of Rio Janeiro, the company is blackmailed by a batch of poisoned yogurts. The president of the company gives a heart attack and Veronica goes to visit him to the hospital. There he meets a young man (Pablo Carbonell) who runs away from someone who wants to kill him. Suddenly, the young woman is involved in a series of entanglements, blackmail and persecutions, caused by men who cross their path, all obsessed with crazy love for a puzzling woman fatal.