Hercule Poirot

You received a summons to attend a party at the Ennis house. A large mansion owned by millionaire, Frederick Loren. You arrive and notice when crossing the threshold of the entrance, that others have received a summons. Including Hercule Poirot. The evening continues and as the party hits its peak, a scream comes from a bedroom upstairs. Everyone rushes up to find the body of Frederick Loren, of which next to his hand is found a crystal glass, which likely contained wine, and maybe poison.