November 1928, New York City. No one can keep a secret like high society - especially when that secret is murder.

There are two things Penelope Harris would rather do than get involved with another murder-sing opera and flirt with Thom Lund. When two tickets ensure Penelope and Thom get some precious time together at the Metropolitan opera, neither believes another murder will interrupt their romantic evening.

Fate has a different plan. Before the night is over a manufacturing tycoon is found dead at the bottom of a staircase, his poisoned and dying daughter nearby. Is it an accident? Or murder? When a fellow soprano pleads for help, Penelope just can't help her inquisitive nature.

As Penelope pulls back the cover on a diabolical murder, Lund rushes to complete the investigation of a suicide on the Gold Coast of Long Island. What they find will uncover the sordid underbelly of high society and put Penelope on the wrong side of her own gun.