This mind-bending documentary tells the story of how Palestinian Mosab Hassan Yousef, the son of a Hamas founder, was recruited by Shin Bet, the Israeli security service, to work as an informant for them. Yousef is his father’s most trusted aide, privy to all his secrets. What makes someone betray the cause of his people? His own family? Through extended interviews with Yousef and Gonen Ben Yitzhak, his Israeli handler, you hear the different sides and enter a convoluted web of secrets and violence and personal responsibility. (Pacific Place, 600 Pine St,, 7 pm, $12/$10 SIFF members)