Drama series following the FBI’s Behavioural Analysis Unit as they attempt to solve crimes through psychological profiling.

http://www.imdb.com/title/tt0873962/

The unsub brings to life a sci-fi book whose author he mistakens for the birth mother who abandoned him as a child.
(Season 2, Episode 8: Empty Planet)

http://www.imdb.com/title/tt1110970/

The BAU travels to Denver, Colorado, where they investigate a series of home invasions that end in the murders of entire families. However, the case takes a turn when they begin to suspect that the killers were once-abused children. The foster environment unwittingly breeds future killers.
(Season 3, Episode 4: Children of the Dark)

http://www.imdb.com/title/tt1256089/

“Gypsy” couples abduct the daughters of the families they slain, to provide slave wifes to their sons. The abducted girls turn into abductors.
(Season 4, Episode 13: Bloodline)

http://www.imdb.com/title/tt1522954/

The team hunts a suspect who impregnates young women and has them give birth before murdering them if they do not provide sons, who are suppose to replace the child that his cancer-dying wife has lost.
(Season 5, Episode 5: Cradle to Grave)