 Marcia, a sexy bucolic orphan, hitch-hikes to the city to meet up with her sister, who has promised her a job at the roadhouse where she works as a hostess. She has no qualms about sleeping with her driver in order to be safeguarded to her destination. Once she arrives, she discovers that her sister has recently been violently murdered -- in a stangulation by garter belt. Marcia takes her sister s job in order to go undercover in finding the murderer. She thus imperils her own life while making discoveries about her sister s former lifestyle and the seamy antics of the local civic leaders.