Three men working for the same robotics company discover that they have been fooled by their lover who was triple-dating them. Because she's pregnant and threatening their careers, they decide to join forces to get rid of her by committing the perfect crime but things will take an unexpected turn. (Source: MyDramaList) ~~ Adapted from the novel "Brutus Heart - Perfect Criminal Murder Relay" (ブルータスの心臓-完全犯罪殺人リレー) by Higashino Keigo (東野圭吾).