The brand new show, which stars former EastEnders actor Danny Dyer, continued tonight.
Viewers tuned back in despite the first episode leaving them less than impressed.
They watched as Mia accused Danny’s character Steve of cheating on her mother – unaware it’s actually Sarah being unfaithful.
Fans will know Steve has been keeping his worrying money problems from his wife.
During the episode he finally came clean and revealed they were going to have to sell their home.
However, that wasn’t the bombshell that left viewers horrified.
Fans watched as Brad could be seen sitting in his office watching back Mia and her boyfriend Jett having sex.
He had secretly recorded them during the intimate moment, as well as watching her in her bedroom.
The revelation has left viewers feeling ‘sick’ as they took to social media to comment on the twist.
One said: “I hope that’s not Mia’s brother recording her and Jet.”
A second wrote: “Heat has just got weird!”
While a third remarked: “Well I did not expect that #Heat.”
Heat continues on Thursday night as the drama intensifies about inside and outside the mansion.