A BABY VANISHES, BUT THE PARENTS' NIGHTMARE WAS JUST BEGINNING -- A "48 HOURS MYSTERY," SATURDAY, JAN. 15

When Marlene and Steve Aisenberg awoke in their home outside Tampa, Fla., on a November morning in 1997, their five-month-old daughter, Sabrina, was missing from her crib. Immediately, the Aisenbergs reported their child missing and the police began to search for the baby. But soon, the investigation began to focus on themselves as authorities became convinced that the parents knew much more about their baby's disappearance than they were saying. Correspondent Troy Roberts reports for 48 HOURS MYSTERY: "Where's Our Baby?" to be broadcast Saturday, Jan. 15 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

In an unusual move usually reserved for mob bosses or drug kingpins, sheriff's detectives planted secret recording devices in the Aisenbergs' home. After listening to and recording thousands of hours of conversations, the federal government brought an indictment against the couple, charging them with conspiracy and lying to investigators: charges which, if proven true, could send the Aisenbergs to prison for 30 years.

Through it all, the Aisenbergs never backed down from their contention that they had nothing to do with their daughter's disappearance. Eventually, a pair of judges would review the case and find that the alleged conversations were largely "unintelligible" and some of the government transcripts of the taped statements "false" and "pure fiction." The Aisenbergs were cleared and the charges dropped.

Still, to this day, many people in the Tampa area believe the Aisenbergs are somehow responsible for Sabrina's disappearance. What really happened to the little girl? The couple talks candidly about their seven-year ordeal, as well as their firm belief that one of these days their daughter will be found alive.

48 HOURS MYSTERY: "Where's Our Baby?" is produced by Paul LaRosa and Taigi Smith. The senior producer is Anthony Batson and the executive producer is Susan Zirinsky.