The latest episode of "My Crazy Obsession" chronicles Bob and Lizzie, a British couple with the world's largest collection of sex dolls.
The couple has more than 240 life-sized dolls, but unlike most people, they don't use them for sexual pleasure. They simply live with the dolls: have tea, eat supper, hang out.
"I've never made love or had sex with the doll at all," says Bob. "That's not what I do."
The dolls cost about $4,500 apiece (including the lingerie), and the couple's huge collection totals around $150,000 -- about the value of their countryside home. Watch above!