Renato Rossini

Relaciones Peligrosas, originally known as Fisico o Quimica, is a Spanish-language telenovela produced by United States-based television network Telemundo Studios, Miami. It is an adaptation of the Spanish television series Física o Química. It has Sandra Echeverría, Gabriel Coronel, Maritza Bustamante, Gonzalo García Vivanco, Jonathan Freudman, Mercedes Molto, Carlos Ferro, Daniela Navarro, Renato Rossini, Kevin Aponte and Ana Layevska in the leading roles of the plot.

Based on the real life incidents of young Peruvian criminal Fernando de Romaña "Caligula", who ran a ring of blackmail, rape, and drugs in Lima during the early 1990s, before being shot to death.