From Goodreads:

Book #2 in the Robert Wilsop and Friends Mystery series

The unlikely trio of gay sleuths from the critically acclaimed Someone Killed His Boyfriend are back in this fast-paced and delightful romp of a mystery that takes murder to fashionably funny new heights. It ain't easy being green--especially if you're Robert Willsop, a boy from Michigan searching for love in the Prada-filled, Chilean sea bass-eating world of gay New York. While his best friend Michael is perfectly content to detail every bit of his latest hot-wax demo over a plate of fifty dollar pasta, poverty stricken Robert longs for a good, old-fashioned romance. So when a chance meeting with the gorgeous, fabulously wealthy Count Siegfried Von Schmidt leads to a whirlwind romance and a marriage proposal, Robert waves goodbye to his dumpy studio apartment and dives in with heart, soul and a brand-new Rolex wristwatch. Instead of being gloriously happy for him--and angling for a spot on the Count's private Lear jet--Michael and Monette are deeply suspicious. After all, Robert's dates aren't usually described as rich, handsome, and cultured. "Psychotic, mentally crippled, and pathetic" is more like it. Robert credits their lack of support to extreme jealously, and leaves for Germany in a huff, or as huffy as Midwesterners can get. For once, everything is going his way. In fact, until the Count is discovered dead--with a rather large knife in his back--life is just lucky. Suddenly trapped in the European vacation from hell and rapidly becoming murder suspect number one, Robert calls in the troops. Soon, Michael, Robert, and Monette are traipsing all over Germany, looking for clues to a killer cold enough to murder a man and leave a man and leave a mess on the Berber carpets. Could ithave been the spiteful ex-lover with the incredible chest? The servants who were tired of polishing the silver? A disgruntled art collector? One thing is becoming painfully certain--the Count was no prince in real life, and everyone had reason to stab him. With the cops closing in, the trio are in a race to find a moneyed murderer who has decided to tie up all loose ends...permanently.