Season 1

You, the newly appointed District Attorney, has been invited to a poker night at Markiplier Manor. After arriving you meet those you'll be spending the night with, Colonel William, Mayor Damien, Butler Benjamin, Detective Abe, Chef, and the owner of the house himself, Markiplier. After an exciting party, involving way too much alcohol and drunk shenanigans, you awake to horror. In the night someone has killed Markiplier. You're recruited as the unwilling partner to the Detective, Can you find out Who Killed Markiplier? Everyone is a suspect and things aren't as they seem within the Manor.

Markiplier's body has gone missing. The events in the Manor are odder and odder as time passes. You investigate, hoping to find who has committed the murder. The people within the house begin to grow wearier as tensions run high. As things reach a peak, a newcomer arrives. Who is the Seer and what role does she play?

The seer arrives at the mansion to perform a ritual.

In the final chapter of Who Killed Markiplier everyone is at each other's throats. Is everyone going mad inside this manor?