Without Words (2013)

Celeste has avoided speaking to her step-brother Gary since an incident five years ago left them questioning their already complicated relationship. But when their parents' tenth wedding anniversary approaches, Celeste and Gary are forced to break their five year silence. While the two try to remain cordial for the sake of planning the anniversary party, their unresolved past keeps threatening to resurface, which will either bring them closer together, or drive them further apart.