A girls' movie night leads to a not-so-happy ending for a group of college roommates; police investigate a murder that leads them halfway across the state in search of the killer.

In Jacksonville, Fla., a quaint neighborhood seems like an unlikely place for any crime at all, let alone murder; this community's open-door policy may be a little too open.

Reunited family members begin to point fingers at each other after a house fire kills one of their own; somewhere in the ashes are the clues to a murder.

Close-knit coworkers are devastated when one of their own is found dead near a soccer field at the edge of their quiet Indiana town; investigators ask whether this murder was a random act of violence.

After a friend and coworker goes missing on a desolate mountain, detectives must sort through a list of tight-knit colleagues with potential motives for murder; one of them has crucial information that will lead to a killer among them.

In Texarkana, Ark., a murder within a square dancing community leads investigators through a gauntlet of suspects with alibis and potential motives, including love, jealousy and money.