Sexy Evil Genius

Sexy Evil Genius is a 2013 American dark comedy film written by Scott Lew and directed by Shawn Piller. Several people in a bar realize that they have all dated the same woman and that she has manipulated them into appearing there for mysterious purposes.

Upset, Nikki rushes to the bathroom, and Miranda follows her. While the girls are gone, Bert admits that he bribed doctors to testify to Nikkis insanity so that she would escape the murder charges. He also admits that Nikki really is insane and that he fears she will kill someone that night. After the girls are gone too long, Zach checks on them. Nikki rushes out, but Miranda pulls him into the restroom and shows him a gun that Nikki gave her. Back at the table with the others, Nikki accuses Marvin of planting heroin where she could find it, knowing that Nikki had once been an addict. Marvin vehemently denies this and suggests that Nikki made it up as an excuse to hate him for their breakup. A disheveled Zach and Miranda return to the table and admit that they were making out. They also claim that Nikkis wedding announcement is not the real reason they are there and that Nikki is looking for revenge on them all.After more arguing, Nikki admits that she brought them there to settle her old scores with them. Zach becomes worried that she has poisoned them all, and Nikki turns serious. She admits that she coldly murdered her exboyfriend by brewing her own arsenic and watching him gasp and spasm as he died. She tells Bert that shes not insane but instead planned it all, knowing she could fake insanity. As the others become more paranoid, Bert decides hes had enough and gets up to leave. Bert pauses when Marvin suddenly develops a sharp headache, and Nikki claims to have poisoned Marvin. Before he slips into unconsciousness, Marvin admits he really did plant the heroin for Nikki to find. The others are horrified and frantically ask if theyve been poisoned. Nikki tells Bert that she overhead him tell her doctor that he wanted her sent back to the asylum because he wanted to be rid of her. ........

Source: Wikipedia