I Accuse (2003) is a drama film directed by John Ketcham, written by Matthew DeJong and Charles Wilkinson, and starring John Hannah as John Schneeberger along with Estella Warren. It is based on the case of Schneeberger, a Canadian doctor convicted of using drugs to rape two patients.
John Schneeberger revealed the method he used to foil the DNA tests. He implanted a 15 cm Penrose drain filled with another man's blood and anticoagulants in his arm. During tests, he tricked the laboratory technician into taking the blood sample from the place the tube was planted.
EPILOGUE: "Based on a true story, although some characters and scenes have been fictionalized."
In 1997, Lisa Schneeberger found out that her husband had repeatedly drugged and sexually assaulted her 15-year-old daughter from her first marriage. She reported him to the police, who ordered a DNA test. Multiple samples were taken-blood, mouth swab, and hair follicle. All three matched the semen samples from the daughter.