On the Trail of the Tigress

A train-station telegraphist warns the next station of approaching bandits.

A deranged man hides in the attic of a new house and becomes obsessed with the unsuspecting family that moves in.

Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.

A couple receives a mysterious package from an old friend.

Unhappily married Richard Mason concocts a meticulous scheme to kill his shrewish wife so that he'll be free to marry her sister.