Seattle bomb-squad operative Lt. Tom Royko (Judge Reinhold) forms an uneasy alliance with brilliant but aloof heart surgeon Dr. Gillian Hayes (Penelope Ann Miller) to investigate a bizarre series of events, wherein three of Hayes' former patients have literally exploded. The culprit is a disgruntled lunatic (Timothy Busfield), determined to avenge the death of his son in a surgical accident. The modus operandi: a small explosive device, implanted in the pacemakers of the unfortunate patients. As Royko races against time to rescue a whole slew of "walking time bombs," Hayes is forced to come to terms with her own shortcomings as a medical professional -- and as a human being. Filmed in Vancouver, Dead in a Heartbeat premiered March 3, 2002 on the TNT cable network. ~ Hal Erickson, Rovi