While diving in a remote French lake, a couple who specialize in urban exploration videos discover a house submerged in deep waters. Their dive turns into a nightmare when they discover the house was the scene of atrocious crimes.

Alexis recovered her hearing during the brutal murder of her family when she was ten. The visceral experience awakened synesthetic abilities in her and started her on an orphaned path of self-discovery through the healing music of brutal violence. She goes on to pursue a career teaching and experimenting to find new sounds. She is supported and loved by her roommate Marie who is unaware of the dark secrets behind Alexis' unique music and the part she unknowingly plays. Faced with the likelihood of losing her hearing again, Alexis escalates her pursuit of her masterpiece through gruesome sound experiments and devastating designs. She won't let anything stop her not even love.

The life story of Howard Marks, an elite British drug smuggler.