A woman is found hanged on the blade of one of the wind turbines the company Mistralia is installing in an until then idyllic landscape. Her name is Esther and she is an engineer working in the company. Murder or suicide? When Detective Ricardo Cupido is asked to deal with the case, he can have no idea where his investigations will lead. The wind farm is a source of conflict: many of the local people take advantage of it to sell their land, while one couple, both ecologists, refuse to sell and threaten to ruin the company, and harassment and assaults begin to occur in the wind farm. But even Mistralia's executives don't know what's really going on. Cupido finds out about Esther's complex love life and the stress she endures at work through her replacement, Senda, who he cannot help but feel attracted to. Just as he cannot help the appearance of another body.