Do you remember the name of the movie?

I watched a movie in the early mid 90s. Its about 2 girls and 1man. One girl has ginger hair and the other one has brown hair.The man chokes from drinking poison and rolls out of a car. Later the ginger girl found the dead body. At the ending of the film The brown haired girl chokes from the same poison she drank from a glass and the ginger girl sobs deeply and tries to save her life.