When beautiful police detective Anna Manni follows the bloody trail of a sophisticated serial murderer/rapist through the streets of Italy, the young woman falls victim to the bizarre Stendhal Syndrome - a hallucinatory phenomenon which cause to loose her mind and memory in the presence of powerful works of art. Trapped in this twilight realm, Anna plunges deepr and deeper into sexual psychosis, until she comoes to know the killer's madness more intimitely than she ever imagined.