A former church secretary has pleaded guilty to helping her former minister murder her husband in an alleged love triangle that formed the basis of a TV miniseries.

Lorna Anderson Eldridge, 35, entered the plea to second-degree murder Thursday, telling the court that she and Thomas Bird plotted the 1983 slaying of Martin K. Anderson.Mrs. Eldridge said she and Bird hatched a plot in which she stopped her van on a rural highway and pretended to lose her keys so that her husband had to get out and look for them. The Lutheran pastor then shot her husband, she said.