http://www.herinteractive.com/Mystery_Games/Nancy_Drew/The_Deadly_Device/mac

An Elusive Killer Shocks a High-Tech Lab! Fear lingers in a remote laboratory after a physicist's suspicious demise. A police investigation resulted in nothing except a case as cold as the secretive personalities and steel walls that enshroud a top-secret Tesla-inspired facility. That's why the lab owner asked you, as Detective Nancy Drew, to expose the terrifying truth about The Deadly Device!