Desc: Surviving Sinaga: Directed by George Attwood, Callum Roe. With Duncan Craig, Alex Feis-Bryce, Josh Halliday, Robert Ralphs. Reynhard Sinaga is the UK's most prolific rapist. Posing as a good Samaritan outside Manchester nightclubs, he drugged, sexually assaulted and filmed his depraved acts with at least 200 young men for the past 12 years.