Is DMMD anime BL?

DRAMAtical Murder is an anime adapted from a BL visual novel originally created by the company Nitro+ who also made things like Steins;Gate and Chaos Head. Similarly to those and other stories done by Nitro+, it has a very sci-fi and futuristic feeling to it.

Is DRAMAtical Murder appropriate?

DRAMAtical Murder is a wound that doesn’t heal. I was told the Japanese-only PC release of DRAMAtical Murder had an English translation patch made by dedicated fans and that this cutesy thing was actually a visual novel rated for ages 18 and older due to depictions of sex and violence.

How many seasons are there in DRAMAtical Murder?

12 episodes
The series contains 12 episodes total with an extra episode released as an OVA, which covers the bad endings of the original games.