The Walford drama pulled in 7.25m (34.4%) at 7.30pm on BBC One as Kat faced the tricky task of covering her tracks after spending the night with her mystery lover. BBC Three's repeat screening secured 593k (4.2%) at 10.30pm.
Also on BBC One, Holby City entertained 4.49m (18.8%) at 8pm with an episode titled 'Devil's Dance'.
Emmerdale, meanwhile, attracted 6.38m (33.1%) at 7pm on ITV1 with Carl's discovery about Chas and Cameron, adding 247k (1.1%) on +1.
Hollyoaks managed 739k (4.1%) at 6.30pm on Channel 4 as Mitzeee was sentenced to seven years behind bars, while the aftermath brought 584k (3.0%) to E4's first look at 7pm.
Over on Channel 5, Neighbours grabbed 605k (9.1%) at 1.45pm and 923k (6.5%) at 5.30pm, while Home and Away mustered 706k (4.3%) at 6pm and 436k (2.4%) for 5*'s first look at 6.30pm.
Elsewhere, the latest episode of Doctors was seen by 1.47m (21.9%) at 1.45pm on BBC One.
BARB ratings data supplied by Attentional