Six-, 12-, and 15-month follow-up data are presented evaluating a program for high-conflict parents. Funded by a grant from Health and Human Services, the program's content reflects an extensive review of research literature, including the relevant literature on personality disorders. Introduced in Phoenix, Arizona in October 1999, the program has served more than 1,000 families in several jurisdictions. Whereas other programs for entrenched, high-conflict cases are typically time intensive, involving 2 to 6 months, this is a one-time 4-hour program. As such, the authors are heartened to report a suprisingly positive—and enduring—response from the parents.