Plan B Burger Bar will host the Milford Chamber of Commerce Business After Hours on Wednesday, Jan. 15, for networking, food and drink. Plan B Burger Bar is located at 1638 Boston Post Rd., and the event runs 5 to 7 p.m.; $14 advance, $20 at door, $25 prospective member. To register call 203-878-0681 or email chamber@milfordct.com.