Voices in Deep tells the story of a tragedy at sea which connects the lives of Bobby (Sims), an Australian humanitarian, and two orphaned refugees, Tarek (Hilane) and Zaeed (Karaveras), as they fight for survival in present-day Athens. Bobby compulsively exposes herself to strangers in order to dull the tragic memories made at sea, but a chance encounter with Gloria (Papoulia) sees them embark on an adventure together. Meanwhile, Tarek and Zaeed fend for themselves on the streets. Tarek sells his body for food and shelter so as to provide for his increasingly vulnerable, younger brother. Desperate to haul himself and his brother out of their situation, Zaeed takes matters into his own hands, setting off a chain of devastating events.