A mother is shot to death while her young daughters lay asleep in the same room; baffled investigators wonder if an open door invited an intruder in, or if the killer is someone else she trusted who has been in the house all along.

A young teacher's assistant is raped and fatally shot in the middle of the night. Her roommate, awakened by the noise, calls 911 and reports it as a suicide - beginning an intriguing mystery of motive, heartbreak and a tragic discovery.