In April 1969, Kreski was signed by Anthony Newley to play the female lead in the Universal Pictures film Can Heironymus Merkin Ever Forget Mercy Humppe and Find True Happiness?
Los Angeles Times writer Joyce Haber mentioned Kreski in a newspaper column just days after the murder of Sharon Tate by followers of Charles Manson.
Kreski was a member of the murdered actress's social circle, and considered Sharon Tate, who was quite similar in physical appearance, a very close friend.
Kreski was among those invited to the mansion Tate shared with her husband, director Roman Polanski, on the fatal night of August 9, 1969.
Kreski penned an article for the Detroit Free Press discussing her immediate reaction to the death of Tate roughly a week after the incident.