Ken Sema scored twice as Watford beat West Brom 3-2 to move back into the Championship playoff spots on Monday.
Slaven Bilic's 200th game as a manager in English football was a thriller as the Croatian got the better of the side he took up to the Premier League in 2020.
Sema's opener gave the Hornets a halftime lead, but West Brom hit back early in the second half through Conor Townsend.
Ismaila Sarr quickly restored Watford's lead, but again the Baggies responded with Jed Wallace's equaliser.
Sema had the final say 12 minutes from time when his shot took a huge deflection off Erik Pieters to beat Josh Griffiths, and earn Watford their first win in six games.
Defeat leaves West Brom still in 10th place, four points adrift of the top six.