When Zack Briggs discovers a body during a safe opening contest, a pleasant business trip to Las Vegas turns deadly. Zack's lady love is nearly killed, their car firebombed, and even being asked to judge a beauty contest is hazardous.

Using his lockpicking skills Zack prevents a death, but he quickly learns that to save his own life and rescue the woman he loves, he must solve the Murder at the Locksmith Convention.