The restaurant business is full of twists and turns. Here's another:

Tony Clark starts Monday, April 9 as chef at Serafina, the popular but critically panned Italian restaurant at 18th and Sansom Streets.

Clark recently parted company with his previous employer, Belvedere Restaurant Group (operator of Queen Village's Tapestry and Manayunk's Agiato), after repeated head-butting with owners.

Clark's resume includes the Four Seasons and his own Tony Clark's restaurant.

Clark's kids are running his Old Grange restaurant in Cape May, though he told me that he plans to visit weekly. It reopens April 23.