Triple Dog takes place in a small suburban town, where six high school girls play a game of dare that staggers out of control, altering their lives forever...the popular girl, Eve (Alexia Fast), is having her 16th birthday slumber party, when her best friend, the attention-hungry Chapin (Brittany Robertson), arrives late and the party soon starts to take a turn. Content to entertain themselves with facials and pedicures, tomboy Chapin suggests they play a game of dare called , "Triple Dog". The rules are simple: everyone gets a dare and gives a dare. As the night goes on, Chapin challenges each girl to take greater and greater risks. However, it becomes apparent that Chapin is holding on to a big secret. As the antics escalate, and the dares become more extreme, the girls unravel the truth behind a former student's rumored suicide.