Another in Pentecost's string of adventures for PR-man Julian Quist--this time focused on still-gorgeous, much-married movie star Sharon Ladd, about to make her Broadway debut in a musical produced by Julian's old friend Max Marsden. Why is Sharon's behavior so erratic--late or absent for rehearsals, sometimes sluggish, sometimes perfect? That's what Max wants Julian to find out. But the case gets more serious when Sharon's accused of murdering husband #4 Leon Zuckerman after a public argument, So, convinced that Sharon is being framed, Julian delves into her past--talking to hubby #5 (a now-disfigured and disabled racing-car driver), to the star's dresser, to her longtime friend Janet Lane. . . who also turns up murdered. And there's a theatrical showdown at the close, complete with a bomb-scare and Julian's temporary blindness. Glitzy, formulaic, mildly entertaining fare from a mass-producer.