Inclusion Criteria:  Individuals between 18 and 58 years old, any race. A minimum two traumatic events prior to the age of 18 years. Current PTSD diagnosis per CAPS assessment with total symptom scores indicative of a moderate degree of severity (i.e. CAPS total score between 55 and 80). Clinically significant depressive symptoms as indicated by a total score of 14 or above on the BDI.  Exclusion Criteria:  GAF < 40. Diagnosis of schizophrenia, DID, Bipolar Disorder or other psychotic disorder not stated above. Substance dependence or abuse in the past 6 months, as defined by DSM IV criteria and judged by the PI. Current legal proceedings resulting from the traumatic events. Previous treatment in IFS.