Nearing the one year anniversary of Whitney Houston's sudden death, Oprah sits down with the singer's mother, Cissy Houston, in her New Jersey home for her first in-depth, sit-down interview since her daughter's passing.

For the first time cameras have ever been allowed inside her home, actress Drew Barrymore sits down with Oprah to discuss her new marriage to Will Kopelman and their newborn baby Olive, overcoming her own troubled childhood and her 30 year career.

Is it too late to rekindle their sisterly bond?

They were the most loving couple, their friends said. You could see it in the young husband's devotion, nursing his wife during a mysterious illness, as she grew more debilitated and depressed by the day.

You're about to watch a criminal at work, thanks to a hidden camera, and a principled private eye. It's a homicide investigation that started before anyone was dead. The challenge would be keeping it that way.

It would be tough to find a nicer family than the one in tonight's story-- well-known, well-liked.. leaders of their community.