Matthew McConaughey plays a cop turned hit man in his latest flick, “Killer Joe,” but showed a softer side as he stuck close to pregnant wife Camilla Alves at the Macy’s/INC International Concepts party at No. 8 celebrating Alves being named an ambassador for the clothing brand. The couple, who were married June 9 in Austin, Texas, held court upstairs at No. 8 for most of the party, but eventually came down to join the crowd, including Solange Knowles, Kelly Rutherford, Coco Rocha and celeb stylist Lauren Rae Levy, who gathered to toast Alves and drool over hunky McConaughey. The party was to run from 6 to 8 p.m, but after a performance by indie rockers The Lemonades, organizers turned up the house lights at 7:55 p.m. and signaled everyone to leave the cozy lounge just as the furious “derecho” storm struck. Revelers dashed in the rain to PH-D at the Dream Downtown to escape the deluge.