Terry Gross

Sandi Tan was 19 when she wrote and starred in a film directed by her 40-year-old mentor. Then her mentor disappeared with the film footage. Twenty years later, Tan chronicles the mystery in Shirkers.

Billionaire filmmaker Howard Hughes has long been regarded as one of Hollywood's most eccentric and prolific playboys. A few years back, writer and film critic Karina Longworth stumbled onto an online message board, listing women Hughes had had sexual relationships with — just a list of names, no other information.

"In each of these names there's a whole life and a whole story," says Longworth, who hosts the film podcast You Must Remember This.

You may be shocked by what's living in your home — the bacteria, the fungi, viruses, parasites and insects. Probably many more organisms than you imagined.

"Every surface; every bit of air; every bit of water in your home is alive," says Rob Dunn, a professor of applied ecology at North Carolina State University in Raleigh. "The average house has thousands of species."