Chercher La Femme

They named the planet La Femme and called it a paradise and refused to leave it. Now Julia 9561 is heading up the mission to retrieve the errant crew and establish meaningful Contact with the inhabitants. Are the inhabitants really all female, as the first crew claimed? Why don't the men want to return to Earth? What happened to the women on the crew? And why did Paul 22423 warn the First Council to send only male crew members?