The case gripped Bangladesh in 2010. Tamanna Haque, a doctor with a young son, was found hanging from a beam in her bedroom. Her husband’s family said she had committed suicide. But Tamanna’s parents disagreed.

They said instead that she had been killed because of a dispute over dowry. Tamanna’s case isn’t the first in Bangladesh. An estimated 15 women die each month because of dowry-related violence.

Why is this happening and what’s being done to prevent more tragedies? Our investigation leads us to answers that are at once complex and horrifying.

Commissioned by Al Jazeera English for 101 East.