Sandi Tan was 19 when she wrote and starred in a film directed by her 40-year old mentor. But then her mentor disappeared and took the film's footage with him. 20 years later, Tan got the footage back. She revisits the mystery of her mentor's disappearance and the film that was never made in a new Netflix documentary 'Shirkers.'

In 'Burning,' Steven Yeun plays a mysterious South Korean playboy who may or may not be murdering his girlfriends. "To this day, I'm the only one who knows who Ben really is," he says of the character. He spoke with 'Fresh Air' producer Sam Briger.

Also, linguist Geoff Nunberg chooses 'nationalist' as his word of 2018.