Through the 1980s, she made nearly 20 films, mainly appearing in "Commedie sexy all'italiana" and erotic films, but also starring in sword epics such as The Adventures of Hercules and in some horror films. In 1987 Lamberto Bava gave her the role of Gloria in his film Delirium. In 1991 she married the twenty years older antiquarian Beppe Ercole, with whom she had a son Edoardo; the couple divorced in 1998.
In the 1990s, she started to back away from the spotlight a bit; during this time she focused her career on television series. In 2003-2004 Grandi spent 157 days under house arrest accused of having sold a few grams of cocaine. The case was later dismissed.
In 2006, she was a candidate in the list of Azione Sociale, a right party led by Alessandra Mussolini, but she was not elected. The same year she published her first novel, L’amante del federale. In 2008, after a break of ten years, she returned to acting.
