What happens when a homeless couple move in with a millionaire?

After living on the streets of California for a decade, Greg and Marie received a remarkable invitation. A local businessman asked if they wanted to share his $4m home.

A year later, we reveal what happened next and what the experiment tells us about America's homelessness crisis.

Video produced by Hannah LongHiggins, Chelsea Bailey and Cody Godwin; edited by Hannah LongHiggins.

This film is a collaboration with the San Francisco Chronicle.

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