Susannah York stars in this comedy murder mystery as faded night-club singer, Lauren Bacardi. She teams up with Tim Diamond (Dursley McLinden), an aspiring private-eye with a floundering business, and his little brother Dale (who is too smart for his own good). The trio’s luck takes a nose dive when a man walks into Diamond’s office, asking him to guard a package. The contents hold the clue to a fortune, in diamonds… Suddenly, they are dangerously popular and the heat is on to find the jewels.