Stand by Your Hitman (Romantic Mysteries)

Missi Bombay invents things--fatal flowers, Jell-O bullets, stroke-inducing panty hose and other ways to kill a target without leaving any kind of evidence. She's a great asset to her family of assassins. The one thing she can't invent, though, is a love life. Unfortunately, her mom has decided to handle that for her. Next thing Missi knows, she's packed off to Costa Rica for a wild reality show where she's paired with Lex, the hottest contestant on TV. Too bad she also has to scope out a potential victim. But the job becomes tougher when someone starts sabotaging the show...and love-of-her-life Lex thinks she's the culprit!